Team Umizoomi is spending the day at Umi City Ranch. Shooting Star is the smallest horse on the ranch - too small to pull a bale of hay. The team volunteers to seek out the four magic horseshoes that will help Shooting Star grow.
With the exterior of the Harriet Project complete, Nicole Curtis and the guys move inside to begin demolition to prepare for pluming and electrical work. Focusing on the upper bathroom, Nicole uncovers a hidden claw foot tub.
After eight years of practice, the residents head to San Francisco for their oral boards; sparks fly between Catherine and Richard when they bump into each other at the hotel; Bailey intervenes after Owen and Teddy get into a heated argument about their young car crash patient; and Mark tries to recruit Lexie for one of his cases. Meanwhile, Alex feels guilty for being away from the hospital when Tommy's health begins to fail.
Reese goes undercover as an armored car company employee, and faces memories from his past with the CIA.
Alaric finds an unexpected ally to guide him on his dangerous new path, while Damon and Meredith try to figure out what their next move should be. At the schools s Decade Dance, Bonnie asks Jamie to go with her and, at Carolines suggestion, Elena asks Stefan to be her date. Caroline is pleasantly surprised when Tyle shows up at the dance determined to sweep her off her feet, but Klaus does his best to come between them. The dance takes a deadly turn when Damon and Stefan realize they need the help of Matt, Jeremy and especially Bonnie to undo a spell that could prove devastating for everyone.
After the guys throw Howard a bachelor party, Bernadette reconsiders marrying him after learning about his sexual history.
Jane and the CBI try to find the killer of a man found outside a cabaret featuring female impersonators. During the investigation they discover a list of suspects, all of whom bullied the victim. Meanwhile, Cho and Summer hide their relationship from Lisbon.
The guys try to smooch strangers on the streets of Manhattan, play a word game with unsuspecting shoppers, and try not to be camera shy when they're forced to pose as photographers.
In a homage to Law Order, the study group investigate a crime when someone sabotages their science experiment. When they discover the perp, Annie plans on prosecuting them to the fullest extent of Greendale's Code of Conduct.
The final play in a big football rivalry happens differently in Detective Britten's two realities Rex's heart is broken Vega and Hannah plan a going-away party for Britten.
When a crystal is magically stolen from the abandoned house, the Circle decides it was the traitor witch working with Eben so Jake calls for a meeting with Isaac to see if they can get him to change sides. Cassies loose grasp on her dark magic threatens to destroy any possible alliance when their pursuit of the traitor leads them to the Creepiest Place on Earth. Meanwhile, Faye and Jake work together to steal Dawns crystal, Melissa and Adam pair up and uncover a new magic trick. Meanwhile, a frustrated Diana reaches out to Charles for help.
Leslie goes toe-to-toe with Bobby Newport in a debate. Ann, Tom, and Chris work in the media spin room, while Ron goes the extra mile to save a party for Leslie's donors.
Unemployed Andy crashes a fundraiser for the Senator and winds up adopting twelve disabled dogs. Dwight discovers that winning an auction means losing money, and Darryl teaches Nellie how to eat a taco.
The "Famous" Nero Wolfe and Archie Goodwin, relocating from New York, begin telling the original stories (Fer De Lance), as just arriving in Rome. They start out finding the house, cook etc. While simultaneously solving the murders.
Martin attempts to find Teller's mysterious workshop and winds up aiding another professor, Logan, to win big at poker. Meanwhile, a young Italian man creates a viral video to track down the love of his life, whom he only met in passing, and a city slicker who plans to sell off his dead father's ranch, winds up learning a lesson from a horse that makes him appreciate the rural life his father chose. Then, Martin's sister-in-law, Abigail Kelsey, visits Clea and Jake at the board-and-care facility, much to Martin's dismay.
Rod and Di have chosen a two acre plot of land on a rocky outcrop overlooking Kyneton for their new home.
Jeff is stumped when Audrey asks him to name five nice things about her. Meanwhile, Russell pushes Timmy to serenade a woman he likes; Jennifer and Adam mistakenly receive Audrey and Jeff's bank statement.