Contestants continue to go before the judges with hopes of getting a coveted spot among the Top 36. See who has what it takes and who is sent home.

When Jack Burber, a drill sergeant from Mike's past is killed, Mike and one of his Army buddies begin to investigate. They discover that Jack was part of a fight club, which spurs Mike into joining the club to find out what happened.

Kate discovers that someone knows the secret of Aaron's true parental lineage. Meanwhile, the dramatic shifts through time are placing the lives of the remaining island survivors in extreme peril.

When the daughter of a federal judge is murdered, The Lightman Group holds an investigation at the girl's ultra competitive high school. Meanwhile, the team also investigates the case of a NASA test pilot when the subject is accused of intentionally crashing a multimillion dollar aircraft.

Adam heads to Portland, Oregon and Salvador Molly's for the Great Balls of Fire challenge which consists of eating five haba?ero-chili cheese fritters covered in haba?ero hot sauce. Those who can accomplish the feat receives their name on the Wall of Fame.

A police officer who's been having financial problems takes hostages at gunpoint and then gets killed by fellow officers. Detectives Lupo and Bernard search his apartment and find a dead body and valuable stolen documents.

After Purcell's public betrayal in the courtroom, Patty detaches herself from him emotionally, but remains determined to take on the UNR case. At the same time, she begins to be suspicious of Ellen and her possible involvement in the set-up of the infant mortality case. Ellen, sensing Patty's growing distrust, tries a new tactic in order to keep from blowing her cover. The episode ends with the revelation of who Wes is really working for.

The team investigates the death of a former astronaut.

Eric Ripert returns to Top Chef as the six remaining contestants deal with an electric challenge at his restaurant.

A mysterious phone call from a tipster leads Det. Sam Tyler to a headless body. A severed head is delivered to the precinct at the same time, thus leading to the discovery of a series of gruesome decapitations that might involve Det. Carling's brother, Eddie.

Ryan is upset over a late-night prank which was pulled by JD.

Author of The Least Worst Place: Guantanamo's First 100 Days, Karen Greenberg

Tonight Stephen welcomes comedian, musician, author, actor and star of The Pink Panther 2, Steve Martin.

Sean goes undercover in MP Rhona Christie's office after the gang discovers they can make a profit out of her illegal dealings. The whole operation is put in jeopardy though when the gang start to take it out on each other.

Thomas arrives from the Congo and finds himself homeless and penniless. He gets into trouble when he meets Johnny White. However, the gang find Thomas may be the answer to their problems when they realize he has one advantage over the sinister gangster. Chillies, anyone?