Sung, Hooten and Villanueva join forces to convince Trisha Miller, a 13-year-old girl with an advanced brain stem glioma, to try surgery one last time before giving up. Shaken from losing a patient, Ty turns to Dr. Tina Ridgeway for support. Meanwhile, Dr. Buck Tierney tries to bully resident Michelle Robideux into pronouncing a potential organ donor brain dead. And Sydney enlists Villanueva's help diagnosing a patient under the care of internist Dr. John Lieberman.
Emperor penguins cross a treacherous frozen sea to reach their breeding grounds.
On Valentine's Day, Mike and Molly play Cupid and prod Harry into asking Victoria out on a date, and to everyone's surprise she accepts. Meanwhile, Carl has a list of reasons why hanging out at the coin laundry on the holiday will help Samuel and him meet single women.
The travelling food party arrives in Western Australia tonight as mother and daughter team Lisa and Candice put on a show. This performing duo have big plans to wow their guests, but will it be their singing and dancing, or the food, that impresses their guests the most?
Tim McGraw is giving away a brand new house to a military veteran and needs a cake from Buddy to reveal the big surprise; the Next Great Baker winner begins work at Carlo's.
Boomer goes to Chicago in an effort to convince Rebecca's father to let him see her after he forbids them to be together. Boz tags along and searches for a safe place to hide the Bat Medallion. Meanwhile, a menace from the past launches a surprise attack on the kings and it is revealed that Rebecca's father used to be part of the Tarantula tribe. As a result, he erases Rebecca's memory of her relationship with Boomer to keep her safe.
The true identity of Mia’s father is revealed. After she finds out the identity of her mother, Mia runs away with her boyfriend Kyle to a friend’s empty vacation home. Meanwhile, Will visits Edward’s home to find answers to some questions regarding Vivian’s murder.
Prior to undertaking their first security detail for wrestler Ric Flair, Ron and Bobby find themselves playing chicken with some BMX racers.
It’s halfway through the competition, and the remaining eight players go to singles this week. The contestants face their first temptation in honor of Valentine’s Day, featuring favorite Valentine’s Day treats and the promise of the winner getting a weigh-in-advantage for themselves and a friend. Meanwhile, the trainers continue to motivate the kid participants to stay active and work toward their goals at home. Jillian arranges for Sunny to take a Bollywood dance class, Dolvett motivates Lindsay to attend a cheerleading practice, and Biingo anxiously waits for news from the doctor about whether he’ll be able to start practicing for the youth baseball league tryouts that Bob set up for him. Back at the ranch, one player displays an amazing act of kindness, and another has an emotional, heart to heart talk with a trainer about the circumstances leading to his weight gain.
Naomi and Max co-host a charity football game which re-kindles old feelings, while Navid pushes Liam to continue underground fighting. Adrianna purposely sabotages a performance so Dixon will let her out of her contract, and Annie’s blog gets the attention of a publisher.
Adrienne and Brandi come face-to-face (and to blows) at Lisa's tea party.
Sean and the six remaining bachelorettes visit the Caribbean island of St. Croix. While there, one woman reveals a surprising fact about her past that could ruin her relationship with Sean. Later, Sean's sister arrives to help him sort through his feelings. Two women are eliminated.
Daniel, Miss Elaina and Prince Wednesday are at the park with Prince Tuesday. They decide to play a game with a ball. Daniel struggles to catch the ball and gets very frustrated. All of his friends remind him that if he keeps on trying, he’ll get better.
When Max lands tickets to a music awards show in Los Angeles, she and Caroline meet rapper 2 Chainz during the cross-country flight on a private jet.
Ted is reluctant to break up with his crazy girlfriend Jeanette. Meanwhile, Robin becomes attached to Marvin after finally holding him for the first time.
Muscle Man, Rigby and Starla are annoyed about Mordecai's awkward goodbye to Margaret so they try to get Mordecai to tell Margaret how he feels about her.
When Brennan is shot while working late at the Jeffersonian lab, she is rushed to the hospital in critical condition. While at the hospital, she struggles with visions of her mother that defy her usual logic. Meanwhile all evidence suggests that Brennan's attacker may be linked to the Jeffersonian.
The queens connect with their inner child as they star in a fun-filled kids TV show.
Castle & Beckett get an up-close-and-personal view of a "Real Housewives"-esque reality TV series, "The Wives of Wall Street," when they investigate the murder of the show's rising young star. Meanwhile, Castle's attempt to give Beckett a Valentine's Day gift goes horribly wrong.