After her open-ended escape to Costa Rica, Violet has finally returned home and to the practice. Everyone treads a little lightly around her, especially Pete and Addison who have mixed feelings about Violet's desire to reconnect with Lucas. Meanwhile Amelia butts into Sam's personal life, pointing out that he can mend hearts in the OR but can't seem to do that for himself; and Sheldon encourages Charlotte to reconcile with Cooper, while Cooper deals with a young patient who eats everything in sight.
Chef Pisghetti believes he's broken the world record for the world's longest strand of spaghetti with a strand of spaghetti that measures 30 feet long. So he puts George under the trust to keep it safe from Gnocchi who thinks it is a really long cat toy until a lady from the world record book can come to measure it. But when the chef calls and asks how tall the building next door to the restaurant is and George tries to measure it, he finds that the chef's measuring tape is too short. But he does have a long piece of spaghetti.
Milli, Geo and Bot reward themselves for cleaning up Umi Headquarters with a trip to the playground. But just as they’re getting ready to leave, they get a call on the Umi Alarm from their friend Mia. A storm has left the sandbox, swings, slide, and bouncy bridge in disarray and until everything gets fixed, the park will remain closed. The Umizoomi team tackles the task using mighty math powers and soon the playground is as good as new. The park ranger unlocks the gate and Milli, Geo and Bot join Mia and her friends for some hard-earned playtime.
Emma is devastated when her evil boss Kelly asks Ty out. Reef's mom comes to visit and Reef isn't too happy about it. The situation becomes worse when his Mom starts dating Kahuna. Meanwhile, Kelly goes on a date with Ty, only because his dad is rich, which causes a very jealous Emma to try and sabotage everything.
Two teenagers turn up dead and evidence indicates that shapeshifters have borrowed their forms for some special mission. While the Fringe team tries to track them down, Peter grows increasingly suspicious of Walter's secretive behavior.
Reunited on the merged tribe, two old friends rekindle an alliance but trust doesn't come easily, and one castaway makes an unprecedented play, setting the stage for one of the most surprising Tribal Councils in Survivor history.
Sam and Dean are kidnapped by a group of gods, including Kali, Ganesh, and Baldur and held hostage in a small hotel. The gods want to use Sam and Dean as bargaining chips to stop the Apocalypse, but Gabriel shows up and warns them that if Lucifer finds them he will kill them all. Unfortunately, one of the gods turns on the rest and Lucifer appears.
At the Founder’s Day Gala, Elena and Caroline compete for the title of “Miss Mystic Falls” against other girls from town, including Tina Fell and Amber Bradley. Elena is happy to have Bonnie back in town, but Bonnie still has issues to work through. John Gilbert attempts to intimidate Damon, but his plan doesn’t have the desired effect. Damon discovers that Stefan is hiding a dangerous secret that could impact everyone in town.
When Patrick Jane's sneaky conduct causes the case of a confessed hitman to be tossed out of court, his annoyed CBI team must start the investigation over from scratch.
A scheme to replace a corrupt cafeteria employee transforms the study group into a criminal gang run by a power-hungry Abed.
A new Commanding Officer and the discovery of a cruel and lucrative trade in crocodile skins results in some tense and disturbing moments for the crew of the HMAS Hammersley.
Jellyfish Fields is threatened by the construction of a highway built by Plankton.
Olivia receives disturbing news from Gabriel; Aaron's life is in danger as he continues to search for his daughter in Afghanistan.
Andy pulls out all the stops to give Erin a memorable Secretary's Day. Michael reluctantly takes Erin out to lunch and lets slip about Andy's relationship with Angela. Meanwhile, Oscar circulates a video he created that compares Kevin's voice to Sesame Street's Cookie Monster.
When human remains are discovered in the belly of a shark, Brennan and Booth are brought in to identify the missing person. Evidence suggesting the victim had been the prey of several fish directs the team’s investigation to The Aquarium of the Atlantic, where a guest lecturer and notorious self-help guru preaching the healing power of the ocean has gone missing. Meanwhile, both Brennan and Booth navigate their own relationship when a marine biologist shows interest in Booth.
The adventurers meet Narissa, a trainer who has a lot to learn about Pokemon.
Kelly joins Sonja and LuAnn in the Hamptons for gossipy dishing about romance, marriage and under-the-covers relations. In other diva plot arcs, all the ladies attend Kelly's party, where Bethenny springs breaking news on them and dramas revolve around Jill.
When a student is discovered murdered at Lindsey's school, the investigation takes a sharp turn when the CSIs uncover an unlikely connection between the boy's death and atrocities of the past.
Liz Lemon starts making an effort to date by attending singles events with Jenna Maroney, and Jack Donaghy feels forced to choose between childhood love, Nancy Donovan and news anchor Avery Jessup. Meanwhile, a racist comment sparks an office-wide debate on affirmative action and leaves Toofer with a big decision to make regarding his future at TGS.