Rob tells his friends about an odd nightmare he had the previous night involving an egyptian race called the Abydonians abducting him from his bed. Puff, Lance, Zowie and Chef all try to convince him that his dream really happened.
Rob tries to bulk up using "Weight Gain 9000"; Mr. Brown attempts to assassinate Kathie Lee Gifford. A mishap happens when Rob takes too much and becomes more overweight than he already is and Kathie Lee Gifford flees.
Whilst exploring Cimmeria, Rob and Puff are transported to a labyrinth where any Goa'uld, as well as their host, will die if they try to escape. The two nevertheless attempt to find a way out, but are found by an unwanted visitor. Meanwhile, Zowie and Lance use Tundra, a former Goa'uld host, to guide them to the labyrinth.
After increased pressure to acquire advanced technology from their missions, The 5th Grade travel to the planet Gaia in order to capture a creature apparently capable of rendering itself invisible. There they meet the Bitix, an advanced race from Ida, whom the kid's fellow classmate, Dino-Rang, wishes to slay.
The kids rescue a group of technologically advanced Humans, the Tollans, whom they find near death on a volcanically unstable planet. The Tollans don't want to share any of their knowledge with the more "primitive" Earth Humans and, because of this, the NID and Colonel Harold Maybourne plan to take them away for study. Puff tries to stop the NID by having the reluctant Tollans use their technology to escape.
While on an evacuation mission, a symbiote takes Zowie as its host and makes its way to Earth in order to leave for another planet. However, the rest of the team finds out and arrests her. She tells the team that she is a member of the legendary Tok'ra and that an Asarus (Goa'uld assassin) is sent to kill her.
The Goa'uld has discovered that Cimmeria is no longer protected by Thor's Hammer, which The Kids destroyed to free Skipper and is enslaving the natives. The Kids' only hope is to somehow free the mythical Thor from his Goa'uld captivity form.
Zowie's visions of the former Jolinar of Malkshur lead her and her friends to a planet where several Tok'ra are hiding. They attempt to form an alliance which isn't going well. Meanwhile Zowie's father, Jacob Devlin, is dying from his lymphoma.
After Puff looks into an Ancient Resporatory of Knowledge, He realizes that he must spare his life and his relationships to the Asgard in order to raise money for a new race in The Alliance of the Four Great Races.
Just after Zowie is congratulated for her heroisim of defeating Hathor, Puff is beamed out of the middle of the ceremony and aboard a ship belonging to Thor of the Asgard. Thor tells him that he will host a negotiation between the Tau'ri and the Ancient Cronus, the Asgard Lord Odin, and the Bitix Lao Tse. However, one of them does not wish to negotiate.
Rob stares down on a Crystal skull; however, he mysteriously disappears. Rob tries his best to communicate with them even though he can't be seen. He gets the elusive Old Rusty, to help since he claimed to have experienced the same thing.
All the kids in Crappington get mistakenly diagnosed with Attention-Deficit Disorder (ADD). Mr. Brown sends Rex to Miss Genesect's Class in order to make room for Timmy, a new kid who joins a rock band.
Crappington Elementary is unable to activate their Groundbridge. They soon discover that the Russians have their hands on one, after they recovered one from the wreckage of their crashed ship. Another problem is that their Groundbridge is somehow still activated indefinitely.
Lance is Paired with Zowie in the Crappington Games, and since Lance is not a good athlete, she must do all of the work. However, every time she wins an event, Lance gets the credit, and Zowie is starting to get angry with Lance, putting their relationship to the test.
After a Guardsman kills himself by the Groundbridge's unstable vortex and the rest of his team are mysteriously dying, The Gang links the team's routine mission to P4X-347 to be responsible, as they find a highly beautiful, yet very addictive light.
After escaping the Goa'uld, and killing Tanith, the Groundbridge shuts down just as Skipper is still in the wormhole. Their efforts to halt the Groundbridge program are threatened, when Senator Robert Kinsey gives them a 48 hour deadline to save him, or the Stargate program will continue, and Skipper will die.
The group has discovered that the Tollans have Naquadria, a more volatile version of Naquadah, and they plan to use it as a weapon, since the planet's three nations are on the verge of war. Rob prevents an accident, but is stricken with radiation poisoning in the process, and will die if they don't save him in time.
Following the loss of Rob, Havik has made his fleet immune to Asgard defenses, and he has captured Thor. The gang must assist Heimdall to evacuate all Asgard knowledge from Adara II, before Havik gets his hands on them.
The team find Rob, who seemed to have de-ascended, and has no memories of his past life whatsoever. Meanwhile, Havik is now using his superweapon to thwart his enemies. Zowie and Rob must sneak onboard his mothership to disable the weapon, while Lance and Puff use their F-301 fighter-jet to penetrate its shield.
The kids watch a television commercial about a new sci-fi show called "Wormhole X-Treme!", which has very similar attributes to the Groundbridge program. While Puff investigates, he learns that Martin Lloyd pitched the idea of the show to the studio.
Henry Hayes has been inaugurated as President of the United States. There, Senator Robert Kinsey once again plans on stopping the Groundbridge Program, and enlists the help of U.S.A.F Major Roger Donovan, who discovers Kinsey's true intentions.
A freak accident on P9Q-128 influences Robert Kinsey (who is now Vice President) to attempt to shut down the Groundbridge Program and the Protected Planets Treaty. Meanwhile, Toad gets into trouble for breaking a requirement for one of Fraiser's experiments.
Rex's Team is attempting to mine Naquadah on P3X-403 and have alerted a number of native Unas, after they were provoked on their sacred ground. The only hope for a truce is for Teri to bring Chaka to 403. However, the Tau'ri military do not wish an alliance.
Mr. Brown becomes involved in an abolitionist movement to marry Miss Genesect; A parenting project involving an egg turns Lance and Tobias into rivals, while on the other hand, Rob and Melvin make a pledge to get themselves an A+ by creating the best egg.