Stargate SG-1 Season 4, Volume 5 - Season 4, Volume 5

Action, Sci-Fi

Richard Dean Anderson

Director	Peter Deluise; Allan Lee; Michael Shanks; David Warry-Smith
Writer	Brad Wright; Joseph Mallozzi; Paul Mullie; Peter DeLuise; Robert C. Cooper

Episode 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, she is brilliant and Carter recognizes that, given time, she will prove a formidable asset to the SGC.

Eventually, Carter decides to show Jennifer exactly what she can look forward to if she stays the course - by bringing her through the Stargate. They 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 excursion 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.

Episode 20: Entity
The SGC is infected by an alien probe that downloads itself into the base computers, accessing sensitive data on the SGC and its personnel. It is detected and apparently deleted from the mainframe. Unbeknownst to all however, the entity has managed to download itself into the MALP room where it continues to thrive, building itself a new body in order to contain the immense data it has obtained.

SG-1 eventually discovers the entity. O'Neill wants to destroy it, but Sam and Daniel feel they should attempt to communicate with it first. Sam tries - only to be overcome by a blast of energy. She is rushed to safety while O'Neill shuts down the entity, presumably killing it for good this time.

However, the rest of SG-1 soon learns that it is far from dead. In fact, it now exists in a new vessel - one capable of storing endless bytes of data. The entity has taken over Carter's body.

With the base under siege and the alien entity poised to overwhelm them all, O'Neill and company are confronted with a dire prospect: in order to save the SGC, they may well have to sacrifice one of their own.

Episode 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.

Episode 22: Exodus
SG-1 pays a visit to the Tok'ra homeworld. They arrive at Vorash on Cronus' mothership, one of the spoils they claimed following the events of "Double Jeopardy". At a meeting with the High Council, it is revealed that SG-1 intends to lend the Tok'ra the enormous ship in order to help facilitate their move to a new planet. Tanith is beside himself. Why wasn't he made aware of this plan? Teal'c informs him that he could not be trusted because he is, after all, a spy for Apophis. The Tok'ra have known all along. An enraged Tanith is taken away.

The Tok'ra begin to move items up to the mothership. Preparations are underway for the extraction ceremony that will remove Tanith from his host. But amidst all the activity, Tanith escapes his cell and flees up to the planet's desert surface.

A search operation is mounted, but no trace of the Goa'uld is found. Then, the Tok'ra receive word. Tanith must have gotten a message out to Apophis. The System Lord has assembled his fleet and is headed for Vorash.

Carter and Jacob come up with a plan that, if successful, could deal Apophis a crippling blow. They will gate the Tok'ra to another planet, then load the Stargate onto the ship and leave Vorash. Once in position, they will dial the address of the black hole planet, then jettison the gate into the sun. Given proper timing, this will cause the sun to go nova and destroy Apophis's fleet.

Everything goes according to plan. They launch the gate and prepare to flee. Suddenly, a Goa'uld ship decloaks and fires, crippling them.

Their weapons systems are down. Their hyperdrive is inoperative. And Apophis is closing fast. But, perhaps more importantly, the countdown has already begun on a blast that will take out the entire solar system.