Christopher convinces Lorelai to accompany him to Parents' Day at Yale to visit Rory, and Lorelai is surprised to find that Emily and Richard are there as well. At Yale, Christopher tries prove himself as a 'cool dad' by inviting the Yale Daily News staff to an expensive lunch. However, all of Rory's co-workers drink too much, resulting in a bad situation when Rory gets wind of a breaking story and the staff has to leave. Meanwhile, Luke takes April to her swim team practice where the coach insists that Luke takes adult swim classes. During the lesson, the coach flirts with Luke and the two end up going on a date.

The team encounters logistical problems while trying to run tests on a 600-pound man due to his extremely large size. Meanwhile, House spends the night in jail after being arrested by Detective Tritter for various charges, including resisting arrest.

When a Marine Colonel dies in an explosion at a military golf course, the NCIS team must investigate a suspected terrorist attack with the help from the Army Criminal Investigative Division (CID). The CIA gives them a lead to an abandoned warehouse, but it turns out to be a trap---the warehouse is set to explode. McGee uses his computer skills to break into the secret government files to uncover the terrorist cell.

Louis gives George his old job back.

This is the semifinal round. The remaining three contestants dance to their favorite ballroom style and then a Latin dance.

The flamboyant rise and tragic death of pioneering aviator Alberto-Santos Dumont.

Ray Tatum faces the blame of his team mates after Panthers' win in the game last week might be overturned. Defensive tackle Bobby Reyes is arrested by the police during a practice for beating a student. Coach Taylor and Buddy Garrity are questioned by the Texas High School athletic administration. Lyla and Tim surprise Jason by taking him to the lake.

The death of a music producer is initially believed to be connected to his professional interests, but later the attention turns to his romantic interests.

When a mysterious sniper kills a string of random people, CNU is determined to find the snipers hideout. But when they catch a suspect and announce their success, a police captain is shot and they learn that the man in custody is actually copycat. With the real sniper on the loose, negotiations arent enough and Matt and Emily must work with Frank and Duff to catch the killer before he hurts one of them.

Dean O'Dell expels Claire after Veronica exposes her for faking her rape.
After Veronica does very well on a paper most of the class failed, Professor Landry offers to be her faculty advisor if she would change her major to Criminology. However, is accused by another student of plagiarizing her paper.
After getting caught cheating on a mechanical engineering exam, Wallace is given a choice of getting zero on his or dropping the course - He chooses to take the zero and struggle to make the grade so he can stay in his major. To do so he asks the coach for the semester off to focus on his school work in turn giving up the chance to be a starter on the basketball team.
Keith and Harmony spend more time together.

Dr. Merrill Bobolit, who's out of jail, needs Sean's and Christian's professional services. Escobar Gallardo wants them to perform surgery on his face. And Matt tells his family that he's married and that he and his wife are expecting a baby.

Jonas and Bob, on personal time, rescues a young girl from a cult leader as a favor to an old friend.
Tiffy covers for Charlotte and finds herself in a lot of trouble.

Combined with The Colbert Report, Dan Rather stops by.

Combined with the Daily Show for the night, Stephen talks to Warren Beatty by phone, Rep. Robert Wexler via satellite and Rep. Eleanor Holmes Norton via satellite.

Jin breaks into the bureacy of technology while Ishida begins his battle with the Bounto. Why did Jin break in? And who will win the battle between a Quincy and a Bounto?