17 September 2000
Zack forgets to return Alice in Wonderland which lets the main characters put him in trial.
18 September 2000
Zack's voice literally escapes from his mouth and begins to wreak havoc. Also, Gwen is introduced.
25 September 2000
After Zack decides not to run against Vernon for election as class president, he is sent to a future where his arch-nemesis is in complete control of Horace-Hyde White School for Boys.
2 October 2000
A shock allows Zack to read people's minds.
Season 1, Episode 5: Sockworld9 October 2000
Zack lands in a parallel universe while trying to save a sentimental sock. The only way to return home is to forsake the sock.
16 October 2000
Dan buys a magneto scope which previously belonged to Mr Mantueffel. Little does he know is that is where aliens live and they want Vernon to be their specimen.
23 October 2000
Zack learns dogs' language.
30 October 2000
Spence is trapped in a video game which allows Tara Bond, the main character to escape and have a night with Dan.
13 November 2000
Fortune cookies help Zack to make some more wishes but his luck turns sour when he and Cam become struck in a scrap heap.
20 November 2000
Zack's new shoes won't allow him to take a break so he is forced to run continuously.
Season 1, Episode 11: Deja Vudoo27 November 2000
Zack has a blind date with Rita on Gwendolyn's birthday, while Spencer videotapes it all. The date goes bad, Zack becomes the schools laughing stock, on tape, but then he finds a way to rewind the tape and the day with it.
Season 1, Episode 12: Fiber1 January 2001
Zack's new cereal makes him older and older. Cam, Spence and Gwen have to find a way to turn him back before he becomes dust.
4 December 2000
Zack accidentally swallows a seed that turns him into a tree.
8 January 2001
Zack's soul gets separated from his body after a photographer took a picture on him with a special film.
15 January 2001
Zack finds himself in trouble when his son Mack arrives from the future and asks him for help.
22 January 2001
Zack is electrocuted by a microwave and accidentally shrinks Gwen, Dickie, Tad, Todd and Vernon before putting them in a terrarium.
29 January 2001
Zack's stage fright becomes real when the guys suddenly have to walk through the school without trousers.
5 February 2001
Zack borrows Gwen's talisman in order to make his dad lucky but things take another path when Gwen suddenly becomes jinxed without her talisman.
Season 1, Episode 19: Sparkin'12 February 2001
After getting an electrical shock, Zack develops the power to create romantic sparks between people.
19 February 2001
Zack's compulsive behavior forces him to deal with his conscience.
Season 1, Episode 21: The Switch26 February 2001
Zack switches place with Vernon and later, his manservant Charles.
5 March 2001
Zack's new glasses offer him a new ability; He can predict the future.
Season 1, Episode 23: Gone12 March 2001
Cam gets Zack to use his newfound power of invisibility to spy on Gwen, for whom Cam has feelings.
20 March 2001
After Zack neglects his responsibilities in taking care of his neighbour's plants, her apartment becomes a prehistoric jungle.
27 March 2001
Zack finds a key which allows him to enter another apartment which exists in a parallel world.
2 April 2001
As a Greenburg family dinner looms, Zack is visited by the ghost of Grandpa Maurice, who wants to reunite with Grandma Leah.
17 September 2001
Zack, Cam and Spence turn the clock back in order to get a few extra minutes to work on their class assignment. However, they are sent back in time to 1912. They accidentally bring a student named Jeb McFadden back with them to the present, which threatens to erase both Gwen and the school from existence.
24 September 2001
After Zack receives an F- on a physics pop quiz, Spence accidentally downloads a tutorial into his brain and he gradually gets more and more intelligent. When Zack is chosen to represent the school in a physics competition, his friendship with Spence is put at risk.
1 October 2001
After being exposed to Ms. Arlington's sapphire bracelet, Zack loses the ability to lie.
Season 2, Episode 4: Groovin'8 October 2001
After listening to a 1950s soul record backwards, Zack is possessed by the spirit of a beatnik.
15 October 2001
While on a school camping trip, Zack accidentally transports himself, Cam and Spence to a parallel universe.
22 October 2001
Zack develops the ability to enter other people's dreams.
5 November 2001
After Zack writes a story about a superhero with telekinesis, he develops the same powers himself.
Season 2, Episode 8: Zack Zero12 November 2001
After visiting a World War I exhibit, Zack is possessed by the spirit of a soldier. He soon learns that he must avoid touching old objects to prevent himself from channeling his past lives.
Season 2, Episode 9: Zack Girl19 November 2001
After using Girl Power deodorant, Zack transforms into a girl. He is extremely annoyed when Cam tries to set him up with Vernon and even more so when he thinks that Cam is trying to steal Sarah away from him.
26 November 2001
After Dan becomes the school's temporary soccer coach, he is possessed by the ghost of a Scotsman named "Mighty Red" MacDonald who is obsessed with winning.
3 December 2001
After Cam mocks his poor swimming performance in front of people, Zack turns him into a frog using a lucky charm from the Amazon.
7 January 2002
A ghost named Gilbert Millerson, whom only Zack can see and hear, starts playing practical jokes and getting Zack into trouble with his father and Mr. Munk.
14 January 2002
Zack is depressed that he may not make the Horace Hyde-White baseball team. After he saves his father's life by preventing him from being crushed by a jeep, he develops superspeed and superstrength similar to "The Six Million Dollar Man"
21 January 2002
While cleaning up the living room, Zack and Spence are sucked up into the vacuum. Cam and Gwen have to figure out a way to rescue them before they are eaten by a spider.
28 January 2002
After pulling the sword from the stone, Zack releases Merlin from centuries of confinement. Using the wizard's help, he tries to win his girlfriend Sarah back.
10 February 2002
After Zack sets off the security detector at a music store, he develops the ability to attract stolen property, including a book by Archimedes worth $1,000,000, like a magnet.
17 February 2002
Zack finds that he is overbooked. When a new concave mirror is installed, his reflection comes to live. Zack Two keeps joining more and more school clubs.
Season 2, Episode 18: Pop!24 February 2002
When Zack's mother Caroline pays him a visit, she brings a bottle of his favourite soda. When he drinks it, Zack develops the ability to teleport whenever he burps. Cam and Spence become concerned that he may not be able to control his teleportation and may pop to the Moon.
3 March 2002
After Zack has trouble deciding whether to vote for Cam or Gwen in the election for class president, Spence suggests that he participate in a sensory deprivation experiment. As a result, Zack is sent to a parallel universe in which there are no colours and no choices.
10 March 2002
Zack is extremely nervous about his Bar Mitzvah as he does not want to grow up. Consequently, he turns into an eight-year-old boy.
17 March 2002
Zack, Cam and Spence are building a robot named Elmer for the science exhibition. After Zack uses special glasses, he gains the ability to see through Gwen's eyes and learns that she may be sabotaging Elmer.
24 March 2002
After Cam and Spence push Zack into Mr. Munk's office, he becomes the assistant headmaster. Using his new authority, Zack decides to turn the school into a kid's paradise. However, Vernon's father Mr. Mantueffel, the head of the board of trustees, threatens to close the school down by the end of the day if things do not improve.
31 March 2002
As a result of wearing gloves that Spence designed to play him music video games, Zack gains the ability to play the guitar like a rock star. However, he can only do so in the confines in his bedroom. This poses a problem when the band Scrap Heap wants to hear him as their new lead guitarist.
7 April 2002
Zack learns that he is the star of his own reality show, "The Zack Show", in a parallel universe. However, ratings are flagging and if the show is cancelled, his universe will be destroyed.
14 April 2002
After Zack loses his memory, Cam and Spence try to help him to get it back by reminding him of his previous paranormal excursions.
5 May 2002
As the series finale, Zack must learn Romeo's role in order to pass his English theater exam. However, when he has learn nothing, even the story, he finds himself in another dimension where he plays Romeo while Gwen is Juliet, Cam Tybalt and Spence the monk.
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