Ep 4. Zero Hour

The Stargate SG1 season 8 episode 4, Zero Hour, takes place on a planet named P8X-412. The SG1 team visits the planet for a routine check-up and gets attacked by unknown creatures. One member of the team, Teal'c, gets infected by a venomous creature and falls into a coma. The team realizes that the venom is from a species that is not native to the planet, and they suspect that they may have been brought there by the Goa'uld.

Meanwhile, an SG team that went missing on P8X-412 years ago reappears on the planet. SG1 investigates and finds that the team members have been brainwashed by the Goa'uld and now work for them. They also discover that the Goa'uld brought the new creatures to the planet to use as bio-weapons against Earth.

SG1 teams up with the rogue SG team and tries to stop the Goa'uld's plan. They successfully destroy the bio-weapon and free the brainwashed SG team. However, Teal'c's condition continues to deteriorate, and they realize that the venom has caused irreversible damage to his body.

While the SG1 team tries to save Teal'c's life, they also discover that a group of Jaffa are planning an attack on Earth. They realize that they need to warn Earth and stop the attack before it's too late.

Zero Hour is a thrilling and action-packed episode that keeps viewers on the edge of their seats. The episode is filled with twists and turns, and the stakes are high as the SG1 team races against time to stop the Goa'uld and save Teal'c's life.

The episode also explores the idea of the consequences of actions and decisions made in the past. The re-emergence of the rogue SG team serves as a reminder that the SG1 team's actions have lasting consequences that can come back to haunt them.

Overall, Stargate SG1 season 8 episode 4, Zero Hour, is a must-watch for fans of the series. It's a great example of the show's ability to blend science fiction with drama and action, keeping viewers engaged from beginning to end.