Sheldon and Leonard are invited to a party hosted by Wil Wheaton, and Howard is offered a once-in-a-lifetime event.

Despite all that has happened, Caroline is determined to see that Elena, Bonnie, Matt and Tyler all enjoy a traditional Senior Prank Night before the school year begins at Mystic Falls High School. However, when uninvited guests show up, it doesn't take long for the evening to take a deadly turn. Damon convinces Jeremy that he can use his new connection to the other side to help find a way to defeat Klaus. Finally, Klaus deepens his hold on Stefan and uses him for increasingly violent and dangerous purposes.

As the study group sets to work on their first big assignment in biology - a terrarium - they are driven to distraction over how they should pair off to do their project. Elsewhere on campus, Chang (Ken Jeong) patrols the school grounds looking for signs of trouble and imagines himself in a noir detective mystery.

Bosley reunites with an old flame to rescue the angels behind bars, in "Angels in Chains," based on an original episode in the iconic series.

In an effort to fight the inequality of Ron's boys-only wilderness group, Leslie takes her girls-only troop, the Pawnee Goddesses, on an adventure weekend. Meanwhile, Tom and Donna force Ben to join them for a day of relaxation, and Chris finds a reason to spend time with Jerry.

The residents try their hardest to impress surgical great Catherine Avery, who also happens to be Jackson's mother, when she arrives at Seattle Grace to perform a groundbreaking transplant surgery.

Andy hosts a garden party at Schrute Farms, hoping to impress Robert, but feels his family's presence isn't helping.

Torn between her loyalties to the Circle and her family, Cassie wrestles with the secrets she must keep from her grandmother. Nick is thrown for a loop when Melissa adopts a new attitude and enlists his help to track down her family's Book of Shadows.

Dr. Megan Tillman, a workaholic ER physician, comes up on the Machine. While Reese and Finch watch her, Fusco has to deal with a drug cartel that wants their drug money back.

Coming closer to the Finale the judges want the designers to create a mini collection. Zoe Saldana is a guest judge.

Whitney is surprised to learn that Alex had a full life before he met her. In an effort to do more things together, they decide to play a friendly game of basketball, but things go awry and a sore loser emerges shocking the gang.

When Frank's long lost brother Gino shows up at the bar, the two of them tell the gang about the jazz club they ran in the 1960s and 70s, and how they fell out over Shadynasty, a singer who was the love of both of their lives.

A woman without a uterus goes to Addison and Jake for help having a baby. Amelia, who seems to have her life back in control, treats a patient with Parkinson's who can't seem to stay faithful to her husband. Violet finds attending a mommy group isn't helpful with coping to be a stay-at-home mom.

While Lisbon looks into the death of a photographer at a political rally, Jane has his sights set on proving a man carrying a gun at the same rally is a psychopath with murder on his mind.

Deena once again is on the prowl for Pauly D. The Situation continues to instigate drama in the house and everyone turns on him and later in a club Team Meatballs are not treated well again and end up getting into another brawl.

When a good-looking stockbroker is killed mysteriously, Jane automatically suspects his wife. Meanwhile, Jane enlists the help of a hypnotist to fight her addiction to smoking. Elsewhere, Matt is furious when his ex-wife suggests Jane shouldn't attend their son's birthday party.

Draft day proves to be a bust for everyone, but no one trusts anyone else enough to make a trade. Meanwhile, Jenny goes back to work in real estate; and Ruxin tries to get baby Geoffrey into a Jewish preschool.

Sarah Michelle Gellar, Simon Helberg, Dropkick Murphys

Bill O'Reilly, Martina McBride

Zachary Levi, Gloria Estefan

Kathy Bates, Anthony Head

The presenters conduct a 120mph crash test. They also compare two of the most powerful Jaguars ever made. They also take a look at the Range Rover Evoque.

Alex and Harper decide to get another Roommate after they learn having an Apartment takes a lot of money. So, they find Lucy, a Ghost who is heart broken after her boyfriend disappeared over the Bermuda Triangle. So, Alex and Harper try to set her up with Justin but she ends up going on a date with Mason. Meanwhile, Even though it was supposedly lost Justin and Zeke's Robot has arrived and Zeke thinks it is evil but, Justin won't believe him.

Note: This is part 2 of a 4-part arc.

David is joined on the show this week by Frank Skinner and Bill Oddie, while Lee Mack is joined by Jon Richardson and Sarah Millican.

An armed robbery ends up taking a much darker twist after the culprit is brutally murdered in his own home. Before DCI Banks can start to unravel the case, Chief Superintendent Gerry Rydell, makes a personal plea for Banks to look for his missing teenage daughter. Some naked photographs found on the Internet by Rydell's wife, Rosalind, makes it look like that she could be in London. Banks reluctantly agrees to help and manages to track Emily down to the home of a drug dealer. Emily refuses to come back home with him but changes her mind. Annie, who has been leading the investigation into the robber's murder whilst Banks has been away, thinks that the robbery could have been staged, but the victim's accomplice refuses to talk. After Emily contacts Banks and suggests that she has seen one of Clough's associates in Leeds, Banks wants her to tell him everything she knows about Clough. Emily refuses to tell Banks anything though. After a battered body is found in an Eastvale nightclub, Banks is shocked to discover that the victim has been identified as Ruth Walker, somebody Emily knew whilst in London. After the true identity of the victim is revealed though, both Banks and Annie find themselves involved in a conspiracy which has changed both investigations hugely.

Karl makes his way to Alaska, where Ricky and Steve have arranged for him to see a few whales as well as a few other things.

Jo Brand asks the questions as the comedy news quiz returns, with Ian Hislop and Paul Merton joined by Father Ted writer Graham Linehan and champion poker player Victoria Coren to poke fun at the past few weeks' news stories.

Dr Christian Jessen, Lorraine Kelly, Sarah Millican and Tom Rosenthal join Jimmy Carr, Sean Lock and Jon Richardson to thrash out the hot topics of the week.

Corden and the gang are joined by a gamut of guest stars. Comedian Lee Mack fills in for Flintoff, before appearances from footie star Frank Lampard and presenter Gabby Logan.

Stephen Fry invites answers for inventive questions from Bill Bailey, Nina Conti, Sean Lock, and Alan Davies

The Injustice League attacks cities across the world with giant plants and demands $10 billion to stop. While the Justice League attacks the plants and distracts the villains, Batman sends Young Justice in to stop the command signal being sent from the villains' headquarters.