Jealousy starts to rear it's ugly head when Tami stays in Dillon longer than expected after running into her wealthy old high school boyfriend. While attempting to score scholarship despite his past, Smash might take up an offer from something out of the ordinary. Tim gets his own Christian radio show to impress Lyla. Some big news may change Jason's life forever.

Colonel Carter joins Dr. McKay and Dr. Keller on an off-world mission, to convince the people of a world rocked by earthquakes, to relocate. However, things take a turn for the worst when they are plunged into a sinkhole and become trapped in an old Genii mining facility.

Deviate forces are held off by Ming and a group of warriors led by Azura. Meanwhile, the Gordon family has a short-lived family reunion on Mongo as Dr. Gordon is freed from the mind prison by Flash and the gang.

Paul goes on the defensive after Gina offers him a suggestion that he does not agree with.

Cooper is suspicious of Pete Skinner, who has an uncanny knack of picking winners at the track. A whale hands off his grandmother to Sam to be entertained and she insists on playing Bingo. Delinda is called upon to referee the pair. Danny, Mike and Polly do a practice run to the maternity ward. Polly takes her role as Delinda's surrogate a bit too seriously, resulting in unintended consequences.

Shawn and Gus investigate the murder of a fashion designer.

This week Joel talks about the Atlanta tryouts of American Idol, truck pulling, Kinoki footpads, Barack Obama's grandmother, and helpful tips from an American gladiator. The 'Clip of the Week' is from the reality show Ocean Force, when a teenager nearly pukes on an officer.

Guests: Author/columnist Jonah Goldberg, political strategist Matthew Dowd, sportscaster Bob Costas, political humorist P.J. O'Rourke (election correspondent), CNN analyst Amy Holmes

Topics: Super Tuesday results, suspension of Mitt Romney's campaign, McCain vs. conservatives, U.S. role as superpower, Roger Clemens steroid controversy and overdependence on prescription drugs, death of Maharishi

When a young girl is trapped in the Silurian era, the team find themselves in serious trouble - giant scorpians are terrorising them, and the anomaly has closed.

After Ruth is found hanging in her flat everyone struggles to come to terms with what has happened.