Sat, Jan 26, 1991
Gi and Ma-Ti investigate polluted areas of water, suspecting Sly Sludge is pouring garbage and sewage there, and Ma-Ti is pained from hearing many cries for help underwater. Gi goes down to examine pollution levels, and is attacked by Sludge's robotic octopus, losing her oxygen-tank and consciousness. She's rescued by Pontus, a resident of the secret underwater city Oceanus, and discovers that the protective dome around it is leaking from the contaminants. The civilization's Council forbids her leaving to bring the other Planeteers back to help, and the others, captured by Sludge, don't know where or if they'll find her. But with the pollution threatening animal and human life, they will need to unite to summon Captain Planet soon...
Sat, Feb 2, 1991
Looten Plunder dams off an African village's river and offers the people electricity to improve services the river once provided, and some luxuries. The Planeteers realize that this means severe loss of fish-life and animals becoming wild with thirst, especially since Plunder had Argos Bleak block the water he didn't dam up. They convince Chief Morla, but not his people, not to do business with him. Shortly after they arrive, an elephant-stampede convince the villagers to reject his technology, but Plunder still hands out the electric bill for everything he's given them, which is too high to pay. The villagers can't continue their old ways of life or even survive long without the river, and just about every natural system there is threatened. Plunder builds a robot likeness of the villagers' river deity to terrorize them so they'll give him the land he now owns as payment, but the machine may cause more disasters than even he planned for.
Sat, Feb 9, 1991
Duke Nukem enters a nuclear power plant with a radiation-leak while the manager is seeing reporters instead of repairing it. He breaks into the machinery and prepares to trigger a meltdown to give himself strength. The Planeteers arrive to stop him, but Dr. Borzon mistakes them for more reporters and locks them in a cramped room full of radiation where their rings don't work. They need Captain Planet to prevent Nukem's creating a worldwide fallout, but first must save themselves and regain their powers.
Sat, Mar 2, 1991
Looten Plunder, Verminous Skumm, Hoggish Greedly, and Dr. Blight team up to dump contaminants in the water-supply for many cities so they can get rich off of selling Plunder's clean water at high prices. The Planeteers go to see what is causing such pollution, and investigate the water and the polluters' operation. Gi and Wheeler are captured while entering the headquarters, so Captain Planet is summoned to get them out and stop the business. But the other three are attacked with the large supply of powerful pollutants, and though he shields them, it proves a major challenge for Cap himself when he is hurt enough to lose most of his energy.
Sat, Apr 20, 1991
Two Middle Eastern village leaders have declared war on one another, despite their sons' friendship and pleas for peace, when an arms-dealer claims that each will attack the other and sells them weapons. The Planeteers, like the children, are aware of the needlessness of the fighting, and the loss of life, destruction of the land, and suffering for both peoples it will ultimately bring. But they learn that Looten Plunder is the one selling weapons, and suddenly not only have to convince the chiefs to end combat, but also have to make sure Plunder doesn't stop them getting their message out first.
Sat, Apr 27, 1991
Captain Planet prevents part of a wall breaking and falling on a crowded street in an overpopulated city. Back on Hope Island, the Planeteers learn that the world is very overpopulated and some countries try to slow it down. Wheeler, annoyed at the idea of anyone recommending how many children to have, goes out windsurfing despite an approaching storm. He's blown off-course and is washed up on an island with a miniature city. The inhabitants, genetically-effected mice with human characteristics including overpopulation and its resulting polluted land, capture Wheeler for food. His kind warden, Piebald, saves his life and the totalitarian government decides he should be shown to the masses to prove their society is well-off instead. When they learn about the Planeteers, their army attacks Hope Island and capture Linka and Kwame for slaves as well. Wheeler has to cooperate with the government to spare Piebald trouble, and think of a way to successfully rescue humanity...
Sat, May 4, 1991
Looten Plunder, Dr. Blight, Verminous Skumm, Duke Nukem, and Sly Sludge team up to defeat the Planeteers by getting powers similar to the ones they have from their rings. Sludge and Skumm send a fake distress-call from an island, then shoot sleeping-gas over the Geocruiser so it crash-lands and they can steal the Planeteers' rings. Before they can take the Planeteers prisoner as well, though, they find the "deserted" island actually has a soldier's radar-station on it, and he orders them to leave. Blight contacts Commander Clash, posing as a soldier claiming that the Planeteers are his enemy's spies. Without their rings and without his listening to their pleas to help them get off the island they're stranded on, the Planeteers have to figure out a way to outwit Clash. What they don't know is that Blight uses her machine to create evil versions of the rings - Super-Radiation, Deforestation, Smog, Toxins, and Hate - and merge them to create Captain Pollution, who they plan to send out before Plunder's army to attack the Planeteers...
Sat, May 11, 1991
The Planeteers learn Commander Clash's radar station he releases Ma-Ti and Gi from was set up during the Cold War, which he doesn't know ended. He is depressed and doubts he has any purpose when he learns the truth, but when Captain Pollution arrives to attack the leaving Planeteers, he manages to beat him back, at their advice, by spraying him with uncontaminated water. They tell Clash that Captain Pollution and his creators will return, but can't convince him that his help is necessary to defeat them. While the villains help Pollution regain his strength, the Planeteers eventually talk Clash into assisting them. Armed only with their brains and technology to substitute their powers, the six must find the rings, summon Captain Planet, and defeat the team of polluters, Captain Pollution, and Plunder's army to stop them from destroying the island and the world.
Sat, May 18, 1991
Hoggish Greedly prepares to enter Dr. Blight's time pool to travel back to the 1950s where he can profit through development as much as he pleases without having to worry about environmental policies. The Planeteers track down their cave in Greenland, and though Captain Planet slows down Greedly and Rigger, Wheeler's pursuit of them near the pool separates him from the others when a sound-wave machine causes an ice-fall. Cap is weakened by radiation and must depart, and the others can't see an easy way to get through the blockade. Bitter about being trapped in a carbon-dioxide-filled chamber with Dr. Blight when he could be celebrating a New Year's Eve party, Wheeler admits that this is one of those times he regrets becoming a Planeteer. Blight offers to let him stop their imprisonment by having him go back in time and undo that. Wheeler gives the date and location, but is reluctant to actually go until Blight pushes him through the pool. Going 360 days back in time to New York, Wheeler catches the Fire ring meant for himself and warns him to refuse it since it's fatal. His past self agrees and flees, but then Wheeler is confronted by Gaia, who tells him that he changed history in more ways than he thought. Greedly was never stopped from going back in time himself, so global warming is now much worse thanks to his decades' worth of polluting. The Planeteers never formed without their fifth member, and Captain Planet could not be summoned without the Ring of Fire. Wheeler doubts this can be true, since others might have been chosen in his place. Gaia takes him forward 35 years through MAL's time-pool system, where he finds New York flooded from global warming...
Sat, Sep 21, 1991
Dr. Helix, a scientist Gi is a fan of, appears to have found a solution for oil-spills by placing his invented substance in water where it absorbs the oil. Sly Sludge decides to get rich off of this so poses as an interested scientist then steals the formula before it's tested, offering to let it devour trash in France where garbage-collectors prove a problem by going on strike. It turns out that the substance grows after "eating" the garbage, turning into a type of blob with an appetite growing with its size. The Planeteers must stop it before its hunger-rampage destroys everything in its path.
Sat, Sep 28, 1991
While Ma-Ti and Wheeler visit Ma-Ti's village in the Amazon, they learn a man called Baron Giftus promises to show the countries of the world a solution to Earth's air-pollution problem - though none of them realize it's a trick of Looten Plunder's. While Wheeler, who doubts his promise, stays behind, Ma-Ti goes to Washington DC with the gift of a headdress from his tribe - and learns of the man's true identity when he sees Argos Bleak and uses Heart to see through Plunder's disguise as Giftus, but he is captured and his ring is stolen so he can't contact the others. Back on Hope Island, the remaining Planeteers become aware of the situation when Plunder reveals that he's installing plastic domes around every civilization with tubes to remove foul and release pure air - at a price, which no town can afford to refuse since the smog trapped inside the plastic is unbearable. Trapped himself under one of these back in the rainforest, Wheeler tries to figure out how to escape and free Ma-Ti, and join the others to summon Captain Planet and put Plunder Air out of business.
Sat, Oct 5, 1991
On Moghal Island, Looten Plunder plans to open a factory and hires Dr. Blight to use her cloning-ray to give him many workers so he won't have to pay them much. The Planeteers don't know exactly what the two are planning as go to investigate, but after they arrive and meet an ambitious but unappreciated local girl named Leela, they're just in time to see her lazy brother Vico captured. Blight and Plunder didn't get to keep their first test-subject, a locust, to see how and what would happen when it clones, but use the ray on Vico anyway. The Planeteers and Leela get him out, and later see that eating causes him to double in number. In a society where males are favored, his parents are delighted to have twin then quadruplet sons. But the Planeteers must go after the swarm of locusts and stop Plunder's getting the clone Vicos to work for him (paid with food), since both the insects and the boys threaten the island with their rapidly-increasing hunger as they multiply...
Sat, Oct 12, 1991
Gi tells Ma-Ti the shark he thought was attacking him during their swim on vacation was a plant-eater, but a Florida Keys local overhears and misunderstands part of their conversation and soon the town believes the beach is overrun by man-eating beasts. Argos Bleak takes advantage of the promises of a reward for someone who will keep the people safe by vowing to kill all sharks. Ma-Ti and Gi try to warn people that harming sharks will mean harming the environment when the animals they control become too populous, then attempt to stop Bleak's hunting, but they are captured. The other Planeteers fly out to meet them, but are shot into the ocean by Bleak. They have to stop his shark-hunting, especially after he intends to use the Planeteers as bait and unchecked numbers of jellyfish really do give the beach-goers something to fear attack from...
Sat, Nov 2, 1991
Hoggish Greedly introduces "dynamite-fishing" to the Philippines, since fishing by placing explosives in the water quickly kills fish...and is the perfect cover for him to dig in the coral reef their ocean ecosystem thrives on and steal and sell its remains. The Planeteers arrive to caution the locals to stop using explosives before the reef, and ultimately their way of life, is destroyed. They have trouble convincing Marcaria, a fisherman's wife, that any gains made will be overshadowed by the losses of sea-life and the length of time the reef would take to grow back, which Greedly's lies didn't mention. When they try to prove the damage to her while diving through the reef, Greedly captures Gi and the others are caught in an underwater cavern when coral struck from her torpedo against his blocks the opening. The other four must free themselves, since Captain Planet cannot stay thanks to Greedly's toxins, and release Gi and convince Macaria's husband Tacio and the other villagers that even their survival is in danger since not having coral reefs brings no resistance to tidal waves.
Sat, Nov 9, 1991
In San Francisco, many are falling sick to poisonings of what look like various toxins and chemicals. The Planeteers go to investigate. Ma-Ti's obsession for old mystery novels makes him eager to prove how good a detective he is. However, none of them notice Verminous Skumm's presence when every place they examine is sabotaged and those they get information from sicken. Ma-Ti's distractions don't help the others learn everything soon enough to solve the problem, so they have him stay behind while they meet a talking mime who invites them to a restaurant at the Bay called The Sinking Ship. They soon learn who he is and that he causes the disease here by feeding runoff-contaminated seafood, and need help to escape when they are about to be made to eat it themselves...
Sat, Nov 23, 1991
The Planeteers visit an organic farm to see how natural insect-repellents are used on crops, but Joe, a neighboring illiterate farmer too ashamed to admit he can't read, receives a job offer operating sprayers from Looten Plunder and Argos Bleak. Their machines are full of pesticide that not only kills the insects, but also other animals. This nearly causes a mass- poisoning when a cloud of it heads for the town. The Planeteers succeed in warning Angela, a schoolteacher, and her students, and Captain Planet removes the gas before leaving. The Planeteers decide to investigate the gas, and take Angela when she reveals that her boyfriend Joe suffered fainting-attacks near where the pesticides were used. Joe is tricked into signing a form making him liable for the operation by being told that he's insuring himself so Plunder will pay for his medical bills. When he sees Plunder and Bleak preparing to attack Angela with the Planeteers, he attempts to intervene but is locked in a warehouse. Ma-Ti and Angela are soon placed with him, and the other Planeteers are forced into a silo filled with corn, as Plunder plans to pour pesticides in on all seven and blame Joe. The Planeteers must break free to stop Plunder from causing any more harm, but even Captain Planet is at the mercy of poisons and farm-machinery.
Sat, Nov 30, 1991
While touring the desert, Ma-Ti is surprised how many animals live there - but is even more shocked to see that it's the spot Hoggish Greedly has chosen for his off-road racing, despite the threats his guide Josh says it gives to the animals there. Gaia reveals also that even small vehicles cause bad damage by unleashing much sand that will be eroded during a rain and prevent plants and animals from surviving. The other Planeteers join Ma-Ti and Josh to find Greedly already attacking, getting a young dirt-biker named Pete on his side by claiming there's nothing to worry about destroying so his enemies are pointless thorns. Captain Planet takes Greedly's and Rigger's road-hogs to prevent the race, but after a sandstorm hits, Pete, whose dirt-bike was stolen by Greedly, is rescued by the Planeteers and, realizing what racing would really do to the environment, reveals it will still be held. He, Josh, and the Planeteers have to stop it from happening before more problems occur, like the flood that occurs during a rainfall...
Sat, Dec 7, 1991
During a boating voyage, Hoggish Greedly and Verminous Skumm land on the Galapagos Islands after Greedly accidentally knocks a toxin over Skumm's rats, causing them to grow and mutate form. They find some endangered Galapagos tortoise eggs, and plan to use them for food. The Planeteers, sent by Gaia to a museum with a camera-operated robot called JASON which can explore anywhere, see the two poaching and fly out to stop it. They have to defeat Greedly, Skumm, and the mutant rats, and even Captain Planet has to get past their supply of toxins in order to help.