Nijil and Valdore continue to control the mysterious Romulan ship that has trapped Reed and Trip, masking it to look like Enterprise and using the ship to destroy a Rigellian vessel. After a Romulan Senator named Vrax chastises Nijil and Valdore for losing control of the ship, Nijil and Valdore vow to kill the humans onboard (Trip and Reed) in order to cover their tracks. Nijil and Valdore trap Trip inside the service junction and leak radiation coolant inside. Over a speaker, Valdore orders Trip to re-establish the damaged warp matrix on the ship or he will die. Reed works frantically to free Trip, but the situation is made worse when the ship engages Enterprise in an intense firefight.

Harper discovers a program built into the Seefra system that can destroy eight of the planets, likely as a defense mechanism. Dylan begins plans to evacuate the eight planets, but is interrupted by a new arrival through the Route of Ages. The rest of Trance has returned to remake Tarn-Vedra, but the mechanism designed to that is not working.

Following a viewing of ''Freaky Friday'' in which she fell asleep, Cate awakens to find that she and Bridget have switched bodies, as have C.J. and Grampa along with Rory and his hamster. While Kerri sits back and enjoys their predicament, Bridget begins enjoying having her mother's voluptuous body while Cate can't stand her being in her daughter's body all of the time.

The SGC learns that some of the Goa'uld fleeing from Ba'al's fleet may be headed to the planet the Tok'ra relocated Col. Maybourne to. Against his better judgment, O'Neill sends SG-1 to retrieve Maybourne before he is captured. However, SG-1 finds that Maybourne has become the planet's leader, and is even somehow able to foresee the future. He has even foreseen that SG-1 will defeat the Goa'uld's attempt to reclaim the planet. Even as the team struggles with what to do about Maybourne and the rest of his followers not wanting to leave before the Goa'uld arrive, they makes a staggering discovery.

A Marine is charged with theft (stealing a car from an Iraqi), MG. Cresswell meets up with his old friend from Iraq but soon finds out that his friend is the father of the son that the Marine stole the car off of. Big Bud meanwhile is called up for service in Iraq but doesn't want to go and asks Bud for help

Monk witnesses a gangland killing and has to go into protective custody in a cabin in the woods. But he notices suspicious activity at a nearby cabin and suspects a murder has occurred there.

Several residents of Atlantis are infected with a deadly nanite virus, forcing a lockdown of the entire city.

When Lt. Kara Thrace goes missing in action after encountering a Cylon patrol while on a training mission, Commander Adama feels responsible - especially in light of her recent admission that she blames herself for his son Zak's death.

Various people in the L.A. area with seemingly nothing in common start to become extremely sick and die on the same day. Don fears bioterrorists may have released a deadly virus into the environment. While he tries to discover whether anyone is behind the outbreak, Charlie tries to locate the point of origin.

Coming Soon...

The team find an injured Swablu trapped under some debris in a forest.

Abs finally stands up to Ellen by threatening to tell immigration about their 'fake' wedding but she then turns nasty. She also makes a big mistake with a patients treatment. Has Ellen made her final mistake? Woody and Luke play a practical joke on Harry, Charlie and Selena. Guppy stands up to his father. Bex feels down after finding out about Pete's cheating ways and Tess really starts to worry about Sam's state of mind.