The remaining nine chefs are given a blind taste test. The winners will receive a dinner with chef Ramsay... in a darkened dinning room where they'll have no idea what they are eating. Later, the dinner service is ruined by meat and potatoes.

When Daddy's away his girls will play! Dr. Walter heads out of town that is and Kat and Bianca throw a house party that has both girls getting wild in their own way. While Patrick tries to clear the air with Kat, Bianca believes she's on the verge of becoming a legend. And Cameron... eats some "loaded" watermelon.

David decides to allow a magazine reporter accompany him and Ruby on a day of bonding. Elsewhere, Jordan wants to gather DNA samples from David and Ruby to see if she is truly his offspring.

The semifinals begin as the first 10 acts from the Top 20 perform.

The eighth Power of Veto ceremony is held.

When four prisoners commit suicide at a maximum-security prison in as many weeks, Artie sends Pete and Myka to investigate. Meanwhile, a frustrated Claudia decides to use an artifact coat to change a light bulb, and chaos ensues.

An examination of the natural and man-made objects which make their way through earth's atmosphere and make their way to the ground and what can be learned by the scientists. Such items include asteroids, parts off of rockets, comets, meteors and other space debris.

Despite a staggering personal loss, Uncle Teddy seems to be surprisingly stoic, but eventually bursts at the seams. Janet and Sheila leave a trial of destruction in the wake of a plan gone haywire.

William gives help to an alcoholic boxer, but then realizes that the boxers wife also has an addiction, but the boxer threatens William to stay clear of his wife.