Mysteries abound when a family returns from vacation to discover a dead man in their daughter's bed. Thinking they're investigating the murder of a squatter, Castle and Beckett soon find themselves unraveling a multi-million dollar heist. Meanwhile, Castle tries to keep Beckett from finding out that they've been romantically linked when he's featured as one of New York's 10 most eligible bachelors.
The gang are just about to close a deal worth 50,000; that is, until Sean is distracted by someone with whom he has a score to settle. He lets the mark walk off with the money while he pursues this man. Emma is shocked to discover that the man is none other than Rex Kennedy, Sean and Emma's dad, who walked out on them 25 years ago.
H.R.G. enacts his plan to take down the Carnival with the help of Lauren and Suresh. Sylar visits Matt looking to understand his desire to make a human connection, but Matt has a plan of his own. Meanwhile, Peter warns Emma of Samuel's intentions after his grim vision of the future.
When a gust of wind scatters the pieces of Jeannie's kite, the team must search for the pieces to put her kite back together.
The team is called in to help fix a crack in the seahorse tank at the Umi City Aquarium.
Cate and Baze are paid a visit by a social worker whose job it is to evaluate both of them and determine if they are fit parents. Lux is torn when her boyfriend, Bug, and best friend, Natasha, suggest that Cate and Baze may not be in it for the long haul and that Lux should return to her old life and the people who love her most of all. Meanwhile, Cate is pressured by the executives at the radio station to deny that she has a daughter in order to save her job.
George takes his mind off things by helping Annie in her mission to play Cupid.
The present. Jealous and sensing ulterior motives in Fitz's return to Toronto, Chen confronts him with a stash of love letters he wrote to Ming. The two come to blows then reflect back on a time during their residency when they helped each other out during a Code Blue. At the ensuring peer assessment review, Fitz takes stock of his mettle as a doctor, his motives as a friend and his true feelings for Ming.
Alf throws a party to celebrate moving into a cottage of his own.
Relationships are on shaky ground when Kit's horse, Daisy, comes down with Strangles and are put under quarantine. Kit decides to stay at Heartland to be with her horse. But Amy loses it when she finds out that Kit brought Daisy to Heartland almost straight after a rodeo where many horses had come down with strangles! Pegasus catches it and that brings mixed feelings, especially for Tim.
Bill, Nicki and Cara Lynn travel to Washington, D.C., where Bill tries to land an endorsement from Congressman Clark Paley while mending things with Nicki. Meanwhile, Margene's on-air triumph is tempered by a case of mistaken identity; Joey goes to extremes to safeguard a secret; and Barb and Sarah hit a young Native American woman with their car.
Hanabusa decides to abandon his rose water pound cake, and angrily throws the bottle into a pond. But Ichigo jumps in after it. After noticing that the pond water left a smell on Ichigo and Kashino (who jumped in after her), Hanabusa has an idea for his cake. When he had his cake to be like the way he wanted it to be, Ichigo suggests that the group should change their pound cake recipes and has to stay up all night to perfect their four cakes. The next day at the Cake Grand Prix match, they show the audience that they had to change the recipes so that they would match Hanabusa's rose water cake (well, most parts of the explanation appeared in sort of a flash back). Because they made cakes that all accented one another instead of overpowering each other, Team Ichigo wins the match. After, during a tea-time celebrating their win, Hanabusa kisses Ichigo on the cheek. Kashino and Andou react comically(maybe jealously), but Ichigo dismisses the kiss as "nothing more than a greeting."
Ed and Oucho's Excellent Inventions is a children's TV show, presented by Ed Petrie and his cactus companion, Oucho (performed by Warrick Brownlow-Pike). Children send in designs of inventions through a nationwide Invention Competition.
Doctor Doom sends his "Team Toxic" (consisting of Pyro, Trapster, and Zzzaz) out in a Fractal-retrieving activity at the north pole only to run afoul of Iron Man, Thor, and Wolverine. While Flatman and Reptil lecture about the polar ice caps, the world starts flooding after Trapster sets off their super-spinner machine to self-destruct. Now Iron Man must convince Iceman to help save the day.
Richard learns to use his wizard powers by the Sisters of the Light, while Zedd must name a new Seeker when Sister Nicci reveals a shocking secret.
Follow real-life law enforcement officers from various regions and departments of the United States armed with nothing but with cameras to capture their actions, performing their daily duty to serve and protect the public.
The boys are not thrilled with their boring apartment at the Palm Woods and hatch a plan to improve it when Gustavo creates a fun "fake" living area for them on a soundstage for an upcoming EPK shoot. The guys enlist the help of all their friends at Palm Woods to move all the cool games and gadgets from the set to their apartment.
Robin, Speedy, and Aqualad team up to earn respect and stop Ra's Al Ghul from attacking the world.
Despite being warned by Paradox, Gwen travels back in time to prevent the accident that turned Kevin into a monster from ever happening. Gwen returns to the present only to find that her time traveling caused a series of events that led to Hex ruling the world.