A shake-up with the tribes creates chaos and new alliances. Meanwhile, the game is thrown off-balance when one tribe's change results in a strength disparity between Gota and Bikal.

The AMERICAN IDOL finalists perform live once again hoping to impress the judges and America. After the performances, it is up to the nation to vote for their favorites. Tune in to see who amazes the judges and who falls flat

Alex reacts strongly when Whitney takes a picture of her backside for a bar bet. When Whitney accuses him of being uptight, he tries to prove her wrong which ends in disaster. Meanwhile, Mark tries to find out what bothers R.J., and is surprised at what he learns.

With his nightclub set to open and a new romance brewing with McKenna, Oliver is as happy as he's been since returning to Starling City. But when Oliver's ex, The Huntress, suddenly returns to town, she threatens to destroy everything and everyone he cares about. Meanwhile, Laurel and her father struggle with the return of Dinah Lance who claims she has proof Sara is still alive. Thea gets Roy Harper a job at Oliver's club, but he's not too inclined to stop his life of crime. Oliver and Tommy are thrilled they were able to get Steve Aoki to play at the opening of their new nightclub, Verdant.

Mildew has betrayed the Vikings of Berk and allowed Alvin the Treacherous to kidnap Hiccup and Toothless. Astrid and Stoick must rescue them from Outcast Island along with help from a new friend.

Debbie is thrilled when a tough-minded businesswoman (guest star Bethenny Frankel as Jill) offers her a chance to revitalize her purse business. Jackie jumps in to help, but her negotiating skills work a little too well, and they're soon in way over their heads trying to produce an impossible number of purses.

An Un-sub runs a fantasy murder writing class and acts out the murders that his class write about.

As he prepares to testify against pimp Bart Ganzel, a woman comes forward claiming that Brian Cassidy raped her while he was an undercover detective. ADA Barba, Detective Benson and the SVU squad nervously await the outcome of the trial, concerned for Cassidy as well as the ongoing prosecution of Ganzel. When prosecutor Derek Strauss pushes hard for a win, Cassidy and his lawyer use some surprising methods of defense, with shocking consequences for Detective Amaro.

Castiel reappears in Sam and Dean's life and tells them Crowley has unleashed several demons into a small town. The demons are looking for Lucifer's Crypt, which holds a valuable asset, but Castiel lies to Sam and Dean about what it is. While interrogating a demon, the three discover Crowley has been torturing Meg, who knows the exact location of the crypt. Sam and Meg fight to hold Crowley off while Dean and Castiel go in search of the crypt.

Troubled rock star, Delilah Fury, embarks on the northern leg of her comeback tour, and Bobby must keep her - and the tour - from falling apart...

When Gerry comes across a down and out Daniel Negreanu (poker player), he orchestrates a staff poker night in order to get Daniel back on his feet.

When Dallas fears she will never compare to Alex, George's ex, she seeks solace in Jill Werner - and carbs; Tessa thinks she has lost her youthful vigor; Noah uncovers a secret about his psychiatrist.

At his wife's urging, David reluctantly attends his high school reunion - which becomes a crime scene when the bitchy former high school queen is found dead in a back room.

Juliet's father returns to town, and Shawn is determined to forge a relationship.

The day's events bring all of our cops face to face with some of their greatest fears. The death of a baby shakes Lydia to her core. Sammy is questioned by I.A. about his altercation with Tammi. A difficult day on the job causes Cooper to seek solace in Hicks but finds none. Ben becomes more deeply involved with Brooke while continuing to see Elena.

Examining the 2012 discovery of a subatomic particle believed to be the Higgs boson, or "God particle", which could explain how matter came to exist in the universe. Scientists explore the fundamental nature of Higgs boson and how it gives mass to matter.

Alice introduces an automated calling system, which leads to Blake imagining a future were machines have taken over the world.

With tensions still running high between Chief Boden and Bennie Severide, things boil over when Mills confronts Bennie about the fire that killed his father. Meanwhile, Severide, Casey and Bennie uncover the truth behind two mysterious diner fires and Shay takes a new direction with her plan to have a baby.

Coming Soon...

During Duck Commander's "Casino Night" party for the sale of their 5 millionth duck call, Si Robertson wins the grand prize of $2000 and decides to buy a massage chair for the duck call room. The massage chair becomes a detriment to the workflow of Duck Commander, so Willie takes Si around for a replacement prize. Phil takes Jase and the boys to his secret fishing pond on a neighbor's property. Only problem is, once at the water, the men spot a beaver dam. This means one thing: war!

Philip and Elizabeth must stop an assassin from taking out key US scientists, while Stan and the FBI hunt the same man. Grannie shocks Elizabeth with the truth of what happened between Philip and Irina in New York.

Sadie, has a homecoming dance coming up, but Willie doesn't approve of her dress selection. Willie decides to take Sadie out to find her a new "appropriate" dress. Jase is in a bit of a predicament when the coffee machine at Duck Commander breaks. Jep, the younger and more hip of the Robertsons, suggests they try a new coffee shop.

Andy Hendrickson, a Top Ten List presented by IndyCar driver Graham Rahal, the Airborne Toxic Event

Vanessa Hudgens, Chris O'Dowd, Gary Clark Jr.

Aaron Eckhart, Kellie Pickler

Rose confronts Alan about his younger girlfriend, Mae, which sparks a heated argument.

Geoffrey surprises Josh with tickets for the footy. Josh tries to be polite and involved, but it's clear that he's out of his depth. Geoffrey, meanwhile, is having the time of his life barracking for his team. He gets carried away and finds himself and Josh ejected from the game.

The humiliation is too much for Josh, and it's over between them... again.

Meanwhile the arguing between Rose and Alan rages out onto the street, until Aunty Peg unwittingly puts an end to it all.

Kim wants to prove her husband's innocence and get him released from prison but nobody seems willing to help her. She realises that the only way she can help her husband is to come clean about a secret she'd rather never came out. Francesca begins money laundering for her husband's business. Harriet attempts to take her relationship with prison chaplain Ian to the next level.

A&E doctor Kevin Fong finds out how doctors can avoid making mistakes in the high-pressure, high-stakes world of the operating theatre.

He sets out to learn how other professionals make life and death decisions under pressure, from airline pilots facing emergencies, to the Fire Service dealing with lethal blazes, to the world of Formula One pit crews. Kevin discovers how all these fields are helping to make surgery safer.