For Valentine's Day, Lorelai and Luke are invited to go to Martha's Vineyard with Rory and Logan. The trip is disrupted by Luke's constant bad attitude towards Logan, but his attitude soon changes when Logan helps him find a Valentine's Day gift for Lorelai. Once things begin to go better, Mitchum Huntzberger arrives, resulting in an ugly confrontation. Meanwhile, Luke has to put Lorelai's worries that they will never get married to rest.

While a severely burned teenager is admitted and his blood tests come back with strange results, House makes himself the guinea pig in his own unofficial tests of a new drug designed to treat migraines to prove a former medical school colleague is wrong about the drug.

Contestants chosen from around the nation endure a grueling rehearsal schedule and pressure-packed auditions as they vie for a coveted spot in the Top 24.

David Attenborough hosts this fascinating examination of the prehistoric creatures found inside amber, a fossilized tree resin that often holds perfectly preserved insects. Using an amber specimen given to him as a youth, he uncovers information about what the Baltic region of northern Europe was like 40 million years ago. He also investigates amber found in the Dominican Republic, including one piece that holds a honeypot ant from 150 million years ago.

Sam and Dean head to Minnesota where a young boy witnesses a man vanish into thin air. Shortly after arriving, Sam is targeted by the same abductor, and Dean is left to search for his brother. However, the brothers discover that their kidnappers are humans, using the captives as human prey for their sadistic "hunting expeditions".

Alan's friendly demeanor quickly turns into anger when a prestigious private school turns away a child prodigy because she lacks the face muscles to smile.



Meanwhile, Shirley and Denise take on a hospital that refused to administer emergency birth control to a rape victim due to religious beliefs, and Brad is put on special assignment by Denny.

As the Strike Team is preoccupied with gang violence, Kavanaugh decides to make the Barn his base of operations. An evasive serial killer from Dutch and Claudette's past reenters their life. Meanwhile, additional strain is placed on their working relationship when Tina learns something personal about Julien.

TONIGHT: Author of A Thousand Barrels a Second: The Coming Oil Break Point and the Challenges Facing an Energy Dependent World, Peter Tertzakian!