Tucker and Reed return in Shuttlepod One to rendez-vous with Enterprise, only to find evidence that it has been destroyed. An unknown phenomenon, resembling a myth known as a "micro-singularity," damages the shuttlepod, leaving the men only days of breathable air and no way to call for help.
Enterprise is on its way to explore the giant Arachnid Nebula when they rendezvous with a Vulcan ship that has been in space for more than eight years. Its crew is V'tosh ka'tur. That means they have a different interpretation of the teachings of Surak and try to find a balance between logic and emotion instead of suppressing them. Trip starts working on repairs with engineer Kov while captain Archer receives a message from the terminally ill father of Kov. Meanwhile another Vulcan, Tolaris, tries to convert T'Pol to their ways. He wants to do a mind meld with her.
Lieutenant Reed discovers a rogue planet, which has broken out of orbit and therefore is devoid of any light. Life is still possible in some places because heat is bubbling up from under the surface, but T'Pol doesn't detect any humanoid life. Further scans however give a strange energy reading which seems to be coming from a ship on the surface. After the crew has landed, they encounter the Eska. The Eska come from another planet and they say they are hunting for the drayjin, an animal considered a delicacy. When captain Jonathan Archer tries to sleep on the planet, ...
Four greedy Ferengis have invaded Enterprise while the crew is unconscious. They have already confiscated numerous valuable supplies, but are still interested in more. They wake up captain Archer to get the know the whereabouts of 'the vault'. Another crew member is still awake in the decontamination chamber, Trip. He wakes T'Pol. Since the weakness of the invaders is not difficult to find, the three try to outsmart the Ferengis.
The crew of Enterprise have a meeting with the trader D'Marr. Unfortunately he is unable to provide them with valuable ores, but knows of a location where these can be obtained. He tells he found an apparently abandoned ship and tried to empty it to make a fortune. But according to D'Marr the ship is haunted and he was forced to leave. Enterprise starts looking for the ship anyway. Scans show there really aren't any bio-signs, but after coming on board the crew soon gets the feeling they are not alone.
Captain Archer and Mayweather are investigating a strange energy reading from the other side of a moon. The next moment they find themselves in a complex inhabited by Sulibans. The Sulibans are kept against their will by the Tandarans, who are in war with the Cabal, a Suliban terrorist organization. Archer and Mayweather are held prisoner because of trespassing, but Tandaran colonel Grat assures their release will only be a formality. While captain Archer is suspicious of the Suliban at first, he soon finds out they're innocent and makes plan to release them. ...
A group of Kreetassans are on board of Enterprise for a friendly meeting. But they leave rather unexpectedly as they seem very offended by something. The crew have no idea what however. But as their ship leaves an alien gel like creature manages to crawl aboard. The creature is growing and growing and shows rather hostile tendencies as it encapsulates five crew members, including captain Archer and commander Tucker. T'Pol, Hoshi and Reed have to come up with a solution quickly. The lives of the five are at stake as the creature begins a symbiotic relationship that in ...
Enterprise is planning a trip to the relaxation planet Risa, when it gets an urgent request from the Vulcan High Command. They must pick up ambassador V'Lar who has fallen in disgrace. Apparently she misused her position during negotiations on the planet Mazar and has been evicted. After Enterprise picked up V'Lar and is on its way for a meeting with the Vulcan warship Sh'Ran, suddenly a Mazarite ship appears. They want V'Lar for further interrogating. When captain Archer wants to discuss it first with Starfleet Command, they open fire.
Enterprise is for the second time on its way to Risa when yet again another urgent matter comes up: a distress call. It comes from a small vessel. The owner, Zobral, is extremely happy with the help from Enterprise and invites Captain Archer to his home world for a good meal and a game of Geskana. When Archer and Trip have landed on the desert planet, Enterprise gets a message from the Torothan Chancellor Trelit. He tells Zobral isn't as nice a man as captain Archer thinks.
After several delays, the Enterprise crew gets some well-deserved shore leave on the famed pleasure planet Risa. Commander Tucker and Lieutenant Reed eagerly seek out female companionship, only to fall into a tourist trap. Captain Archer meets an attractive female who seems to be more interested in his knowledge of the Suliban than his companionship. Hoshi Sato meets a fellow vacationer and they share more than each other's native languages. Doctor Phlox takes the opportunity to hibernate, only to be rudely awakened when Mayweather needs medical treatment.
Enterprise discovers a mining colony of the Paraagans. The crew gets an invitation for a meeting on the surface and a shuttle pod tries to break through the atmosphere. All of the sudden just under the shuttle a giant explosion begins and scorches the earth beneath. All 3600 colonists are reported dead. After examination Enterprise finds out plasma leaking from the pod's vents ignited tetrazine in the atmosphere. Lieutenant Reed however ensures he closed the plasma vents before the shuttle went of. After conversations with admiral Forrest of Starfleet Command, captain...
Captain Archer and temporal agent Daniels have been stranded in the 31st century. In a library they investigate the damage to the time line and try to find way a to get Archer back in his own century. Meanwhile Silik the Suliban leader is trying his utmost to find the whereabouts of Archer and he is willing to go far for the answer. But the crew of Enterprise has plans of their own. Trip finds a way to use the com system and is able to speak with Reed. Together they try to contact other crew members and make plans to purge Enterprise of the Sulibans.
Celebrating T'Pol's one year anniversary as a member of the Enterprise's crew, Archer and Trip have dinner with her. Over dinner she tells them of the true first contact between Humans and Vulcans. It appears that her great-great-grandmother and a the crew of a scout ship crashed on Earth...in 1957.
The Enterprise stumbles into an area of space containing cloaked mines. When a malfunctioning, active mine attaches itself to a critical area of the ship's hull, Lieutenant Reed dons an EV suit and attempts to disarm it. Complications arise when the mine's leg penetrates Reed's leg, pinning him to the hull. Captian Archer must find a way to get rid of the mine and save Reed before the Romulans run out of patience.
After the encounter with the Romulan minefield, Enterprise is severely damaged. Engineer Trip fears the worst. With the ship only capable of warp 2.5, traveling back to Jupiter will take practically forever and he doesn't have the necessary components to make the repairs himself. Captain Archer decides to send out a distress call and it isn't long before he gets a response from the Tellarites. They give the coordinates of a strange repair station. Upon approaching Enterprise is scanned. The atmosphere and the docking port are automatically changed to Enterprise' specs...
After previously offending the Kreetassans, Enterprise attempts to make a better second impression, only to upset the alien race once again. A frustrated Captain Archer returns from the planet only to be further upset to find that his dog Porthos, has been affected by a pathogen native to the world. While Phlox works around the clock treating Porthos, Archer stands vigil in sickbay, experiencing first-hand the quirky everyday life of his Denobulan Doctor.
Upon returning from covertly observing a pre-warp culture, Lieutenant Reed realizes he lost his communicator somewhere on the planet. Archer and Reed return to recover the lost technology, only to find the natives found it first. Captured and interrogated, the crewmen find themselves doing even more damage to the culture, who have scanned the prisoners and know them to be of another race. Meanwhile, Tucker and Mayweather try to figure out how to active the cloak on the Suliban cell ship so they can mount a discreet rescue.
A mysterious wave is headed toward Enterprise. An alien shuttle warns the crew that the radiation will kill them and seeks shelter aboard ship. With only hours to prepare, ship's control is rerouted and Enterprise personnel take refuge in the highly-insulated, close-quartered catwalk. Soon it is discovered that the alien passengers are immune to the radiation and lied their way into hiding on Enterprise, which has been boarded and commandeered by aliens who assumed it to be abandoned.