After Kelsey Grammer shares a disgusting antedote about his pet, Dave theorizes that every great story ends with "...and then the dog ate it." His hypothesis is confirmed when "Heroes" star Kristen Bell shares a dog story of her own.

After a woman was found raped in a garden, Benson and Stabler realize that the case goes much deeper because of the victim's mother, drugs, and the realization that a corrections officer is involved. Benson decides to go undercover at the same prison where the mother is, putting herself on the other side of the fence.

When a dog owner is found murdered, the NCIS team must determine if his dog committed the murder or not, and Abby decides to fight for the dog's life by trusting her instinct about the dog's innocence. Meanwhile, Gibbs learns about Jenny's secret.

When Manchester experiences an earth tremor, Monica's waters break and she goes into labour. On the other side of Chatsworth, the same tremor knocks Frank off of his barstool and puts him in a coma. Monica's refusing to have the baby unless Frank is present, but how long can she keep her bun in the oven? While he's out cold in his hospital bed, Frank experiences an alternative world: a life where he is a success, where Ian isn't gay and Debbie looks like she'll never leave home. It's the world as Frank would have it; or is it? Carl is finding new success with girls by posing as a single parent. It's all going very well until his latest target runs off with the baby. Meanwhile, Shane has a proposal to put to Kelly.

In this must-see, exciting live finale, all of The Biggest Loser contestants from this season return for a special reunion and a chance to weigh in one last time and show America how much weight they've all lost since beginning their weight-loss journeys. There are four contestants left, but America has voted on the two that fell below the yellow line in last week's episode to choose who will be the third finalist in the game. After America's vote is revealed and the third finalist is announced, the eliminated player will then weigh in with the other 16 eliminated contestants to compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000.

Tonight Stephen welcomes Grammy Award winning musical group The Roots.

Episode info coming soon ..