Stargate SG-1 4×22: Exodus (1)
The SGC are loaning their Goa’uld Mothership to their good friends and allies, the Tok’ra, so they will be able to move to a planet that is not on the gate system. However, Tanith is caught out and tells Apophis where the Tok’ra are.
Stargate SG-1 4×21: Double Jeopardy
SG-1 returns to a planet they helped free from Goa’uld enslavement. Once, with the assistance of SG-1, the people of this world were able to rebel against the forces of Heru’ur and win their freedom. Now, they face a vengeful Cronus determined to make them pay for their insolence. SG-1 is prepared to lead them once again, but it turns out their former allies are not so eager to answer the call to arms. After all, they were promised that if they buried their gate, they would be safe. Instead, the Goa’uld returned in ships - and the planet’s inhabitants paid a terrible price. O’Neill and his team must win their confidence before they can win the battle against Cronus. Fortunately, they have help in the form of their robot duplicates, eager to assist them on this doubly-difficult mission.
Stargate SG-1 4×20: Entity
First aired: 2/9/2001 Production Code: 420
The SGC is infected by an alien probe that downloads itself into the base computers, accessing sensitive data on the SGC and its personnel.
Stargate SG-1 4×19: Prodigy
During a visit to the Air Force Academy, Carter makes the acquaintance of Jennifer Hailey, a promising young cadet with a rebellious streak. Carter sees great potential in her, but Jennifer seems determined to sabotage her future with the Air Force. She is fiercely independent, opinionated, and resentful of Carter to whom she is constantly being compared. On the other hand, Hailey is brilliant and Carter eventually decides to show her what she can look forward to if she stays the course - by bringing her through the Stargate. The two of them visit an offworld research base where O’Neill and Teal’c are on security detail, “babysitting” a group of ungrateful scientists. But the seemingly routine mission takes a deadly turn when they are attacked by alien life forms composed of pure energy. Trapped and cut off from the Stargate, SG-1 must make a desperate gamble to reach freedom before it’s too late.
Stargate SG-1 4×18: The Light
A member of another SG team, returning from an alien planet, commits suicide. The rest of his team begins to go into comas, and Daniel, who also visited the planet, attempts suicide. When SG-1 goes to the planet, they discover a hypnotic light show that not only induces memory blackouts, but alters their physiology so that they cannot leave the planet without becoming terminally depressed and ultimately dying of system shutdown. Trapped on the planet, they meet a young boy, Loran, who is apparently immune to the effects of the light system but who lost his parents. The team must figure a way to overcome the addiction or remain trapped on the planet forever.
Stargate SG-1 4×17: Absolute Power
Daniel recovers Apophis’s son, the Harcesis. He has the memories of all the Goa’uld, which SG Command wants to obtain so that they can defeat their enemies. Daniel is given all the knowledge, but soon begins to use it in a tyrannical fashion as he usurps authority to build a ring of killer satellites around Earth capable of repelling the Goa’uld. Soon, only Jack can get close enough to stop him before Daniel completely takes over the world in the name of peace.
Stargate SG-1 4×16: 2010
Nine years in the future, the Goa’uld have been defeated thanks to an alliance with an advanced alien race. Transportation technology and off-world Stargate travel is now commonplace. However, Carter finds out that most of the human race has secretly been rendered sterile by Earth’s new allies. She and the other SG-1 team members must rig the Stargate for time travel (first done in the episode “1969″) and send a message back to their counterparts in 2001 to prevent contact with the alien race.
Stargate SG-1 4×15: Chain Reaction
When General Hammond announces he is stepping down as head of the SGC, O’Neill suspects that there is more to his decision than he is letting on. And, as it turns out, O’Neill is right as he discovers that the NID was behind the change of command. Fed up with the general’s inability to acquire alien technology through whatever means necessary, it pressured him into resigning. When Hammond’s replacement breaks up SG-1 and assigns Carter the task of building a planet-killing Naquadah bomb, O’Neill takes matters into his own hands. He decides to take on the NID, but his success will rest in the hands of a most unlikely ally: Colonel Maybourne.
Stargate SG-1 4×14: The Serpent’s Venom
While visiting Chulak to gather support for a Jaffa rebellion, Teal’c is captured by the Goa’uld. The rest of SG-1, unaware of his fate, are dispatched to thwart a burgeoning alliance between Apophis and Heru-ur. But when they arrive at the neutral location chosen for the meeting - an ancient minefield floating in space - they discover that Heru-ur has brought along a gift to seal the deal: a battered but defiant Teal’c. SG-1 is torn. Do they try to rescue Teal’c? Or, as Jacob Carter argues, does the success of their mission outweigh the life of their friend?
Stargate SG-1 4×13: The Curse
When Daniel Jackson’s old archeology professor, Dr. Jordan, dies in a mysterious lab explosion, Daniel pays a return visit to his old academic stomping grounds. But as he reacquaints himself with his former colleagues, he begins to suspect that Dr. Jordan’s death may not have been an accident. He discovers that one of the items the professor was studying, an ancient Egyptian jar, contains a perfectly preserved Goa’uld symbiote. Apparently, a crack in the vessel compromised the sedative solution within, killing the creature. But further investigation reveals a second jar may have existed. With a Goa’uld apparently stalking the campus and the local community abuzz with talk of an ancient curse, Daniel must unravel the mystery before it’s too late.






















