Harry loses his cool with 3 swimmers that he's forced to rescue just seconds after warning them not to swim in a dangerous area. However, calling them "imbeciles" and "idiots" puts him in hot water.
When 1 Platoon tries to protect a disabled helicopter, Warrant Rhodenizer - commanding the platoon in Captain Cox's absence - is "critically injured" by shrapnel.
When Dixon tries to slow down the pace of their relationship, Silver takes a trip to Kansas to learn what he was like before coming to Beverly Hills. Unfortunately, her fragile mental state gets her involved in a difficult situation. Meanwhile, Kelly once again faces her troubled mother Jackie.
A turf war ensues when Stabler and Tutuola link an artist's murder to a serial killer, and the detective assigned to that case focuses more on their involvement in an investigation he believes belongs solely to him than on identifying the killer.
Just seconds before a building is demolished, a mysterious mute child that has been living alone underground is discovered. When the FBI's Fringe Division investigates, the boy forms an unspoken connection with Agent Olivia Dunham. Meanwhile, an especially gruesome serial killer resurfaces and showcases his "artistry" by displaying his work publicly. As the boy gradually assimilates into a new environment, Olivia and the team must race against the clock to prevent the mad man from causing further massacre.
Patrick Jane and the team go to Hollywood when they investigate the murder of a movie producer.
Julien can't take Mort's obsessive feet touching, so he exiles Mort from the lemur habitat.
Tommy copes with the loss of his father and a new man in Janet's life. Sheila finds a different way to deal with her issues while Sean, Franco, and Mike concoct a surefire way to get rich and laid.
The suspect list keeps growing as the team investigates the disappearance of a Russian matchmaker.
Aspiring fashion designers compete for an industry breakthrough. Each week, a designer is eliminated from the competition after exhibiting their work in front of a judges' panel.
The great warriors of history are examined for fantasy combat simulations.
The Devil misleads Sam into thinking his next escaped soul is an easy catch and encourages him to take along the gang for a road trip. Unfortunately, when they arrive, they discover a tentacled beast has taken over a small town and is eyeing each of them as its next dinner. Meanwhile, Andi feels Sam is becoming too comfortable with this lifestyle, Ben struggles to not be so clingy with Nina, and Sock makes one last effort to sleep with his stepsister.
Jamie beats Joe up after he discovers that he has been hitting Mandy. Mimi decides to take the blame for the attack to save her son from being sent back to prison. Paddy's secret comes out.
When a government scientist goes missing, Abby is recruited to carry on his work, but the team worries that she may meet the same fate as her predecessor.
As the day stretches into the middle of the night, Jack and the FBI formulate a plan to prevent further terror attacks. Events take an unexpected turn when the politics surrounding the administration expand beyond the White House.
Castle and Beckett investigate the murder of a women found frozen and tangled in steel bars at a construction site. The case leads them to look into an old case and also has Beckett thinking about some memories of her past.
Charlotte, an older woman who has spent the last six months taking care of her dying husband Eddie, is rushed to Princeton Plainsboro after collapsing from respiratory failure. The couple becomes a double mystery for the team when Eddie begins to improve as Charlotte’s condition worsens. The previously unthinkable becomes real when it seems that Charlotte will die before Eddie, and the team will be forced to make a difficult decision.
Julien challenges the penguins to play Capture the Flag, but the lemurs win every time.
Bizzarro Italian Cafe (Seattle, Wash.) • Chef Point Cafe (Wautaga, Tex.) • Jamie's Bar & Grill (Sacramento, Calif.) Guy Fieri chases down some funky joints doing serious cooking: Near Fort Worth, a gas station with a menu includes duck l'orange; In Seattle, a café where former circus performers are serving up home-made pasta with elk; And in Sacramento, a dive bar doing prime rib - in a smoker.