Thea is in trouble with the police after she gets caught using a drug called “Vertigo.” Oliver thinks the only way to keep her out of jail is to find the dealer, a man who goes by the name of “The Count”. Oliver turns to McKenna Hall, an old flame and current Vice cop, for help. Meanwhile, Laurel steps in to defend Thea, and Felicity gives Oliver some disturbing news about Moira.

A troubled Chief Boden goes to the police when a man dies in a hardware store fire set by Ernie, the troubled teenage firebug he’s been trying to help, and his Uncle Ray. Meanwhile, Severide decides on his future and reaches out to his father. Elsewhere, Otis finds camaraderie when he fills in for a few shifts at the slowest firehouse in the city, and makes a decision of his own, while Dawson and Shay find themselves in a bad predicament during a call to a tenement.

"Cougar Town" writers Brad and Emily visit the set to give Christa Miller some acting notes.

A visit from the council sees Broadhill retirement home facing closure. Hannah, the home's manager, rallies together her troops - best mates Derek, Dougie and Kev - and together they set to work raising their own funds for the home. A visit from the Meadway animal rescue centre and an outburst from Dougie help to put smiles back on the residents' faces.

From "Identity Thief", actor Jason Bateman; from "Community", actress Alison Brie; musical guests Shovels & Rope.

The detectives go under cover to arrest a man who brutally attacks other men; a deceptively tough defense attorney (Nia Vardalos) complicates ADA Barba's case.

Sam and Dean are stunned when a man who claims to be Henry Winchester, their grandfather, suddenly appears in their hotel room demanding to know where he can find John Winchester. Henry has time-traveled to stop a demon named Abbadon and was looking for John’s help. Through Henry, Sam and Dean learn more about their father and the Winchester blood line.

The Americans is a period drama about the complex marriage of two KGB spies posing as Americans in suburban Washington D.C. shortly after Ronald Reagan is elected President. The arranged marriage of Philip and Elizabeth Jennings grows more passionate and genuine by the day, but is constantly tested by the escalation of the Cold War. Tensions heighten upon the arrival of a new neighbor, Stan Beeman, an FBI agent.

Gay men stress less, Paul Clement defends DOMA in court, the KKK drops its racist message, and Bill Gates shares global health updates.

Actor Dominic Monaghan; from "The Office", actress Ellie Kemper.

The chefs set sail for Alaska on a cruise ship, where they must transform iceberg lettuce into a tasty bite-size appetizer. Later, they reinvent the classic surf-and-turf dish. Curtis Stone is the guest judge.

The guys meet their new boss when Alice quits being their old boss.