For the start of the finals in Las Vegas, Nevada, the top finishers from the regional finals tackle a four stage course modeled after Mount Midoriyama in Japan. Competitors attempt Stage One, with new obstacles the Sonic Curve and The Double Shock.

The competition gets fierce as the final four dancers are revealed!.

In the wake of her breakup with Emmett, Bay decides to refocus her energy on school and signs up for a Spanish class, only to discover that the new harassment policy has put her in the spotlight. Daphne learns that her D in Chemistry will affect her scholarship. John finds himself under serious financial strain as Kathryn makes plans to produce her musical herself. Meanwhile, Daphne and Mingo have a major difference of opinion that leaves Daphne with doubts about their compatibility.

Guests: Science guy Bill Nye and comedian Greg Proops.
Games Performed: Weird Newscasters, Newsflash, Song Styles, Scenes From a Hat, Helping Hands.

April decides to use her inheritance to fulfill the emptiness in her life,spending money on herself and loved ones, as well as buying some potentially dangerous things. Brenna's short film is aired for the first time.

Some senior pranks manage to cause chaos. Jenna's vow to not think about Matty ends up being tested after she overhears a worrying secret.

Shane organizes a revolt after a new principal causes problems for Hester. Amy believes that Karma is hiding something.

Lydia attempts to hide her relationship with Jimmy from her mother, who wouldn't approve about it. Jimmy hopes to be able to prove himself to her.

Through four seasons of Impractical Jokers, the guys have never shied away from a challenge. Whether they're clipping balloons to strangers in a supermarket or pitching a humiliating autobiography to a focus group, Joe, Sal, Murr and Q do everything in their power to make each other squirm as much as humanly possible. In this special episode, the Jokers look back on the series' very best challenges and dish out behind-the-scenes secrets that have never been shared before.

Drill's mysterious end game is put into motion and the team must do their utmost to stop it before it reaches its final - and possibly deadly - conclusion.

Coming Soon...

Despite a new extradition treaty, the U.S. puts more money into fighting communism, creating new challenges for Murphy and Peña in the hunt for Pablo.

When Clifford is admitted after a road traffic collision, it becomes clear his illicit activities have escalated, putting not only himself but possibly Fletch and Mo in jeopardy. Ollie and Seb clash over a case, and though their disagreement seems professional, could Zosia be the real source of their conflict? When Jesse and Guy have differing approaches to a patient's treatment, it highlights the fault lines in their increasingly fractious relationship. Is their partnership strong enough to survive?

With Sasha back on fighting form, UCOS investigate the death of a talented cricket prodigy: star of the pitch and apple of his father's eye - yet loathed by his teammates. The death was recorded as misadventure, but with new evidence pointing to infighting, overzealous autograph hunters and extramarital affairs, UCOS are soon bowled over by the list of potential murder suspects.

Wise to Steve's monetary problems, Danny appoints himself as personal financial advisor and enforces a strict no-frills, no-fun budget. But even with this distraction, he can't escape his own worries about revealing his relationship with Fiona to his ex-wife. Sasha cracks down on the boys' lacklustre fitness and reluctance to come to the 'cursed' Mum and Dad's Do.

In the last episode of the series, the five comics are not only playing for homemade chowder but also for the inaugural Taskmaster series winner's trophy. Tasks include playing golf with eggs and cooking a meal using ingredients starting with every letter of the alphabet.