The final four teams race for a spot in the finale and a high-stakes foot race to the mat will mark the end of one more team's journey.

When Damon's risky attempt to save Bonnie takes an unexpected turn, the consequences of his actions forces everyone to band together to help her pull through. Meanwhile, when a new threat leaves Caroline's life in jeopardy, Stefan makes a rash decision that ultimately forces them to face the fallout from their relationship. Elsewhere, Enzo tries to hold it together as he painfully watch Bonnie in the fight of her life, while Matt takes matters into his own hands to save one of his closest friends.

In the wake of a ruthless plan that has left their family shattered, Klaus, Elijah and Freya desperately search for a way to take down Lucien once and for all. However, their efforts are put on hold following an urgent plea for help from Kol and Marcel. At Klaus' insistence, Freya and Elijah reluctantly stay behind to offer their help, while Klaus and Hayley head to the bayou after uncovering Lucien's latest plan. Once there, an unexpected showdown between Klaus and Lucien forces Freya to take matters into her own hands, setting off a chain of events that will change all of their lives forever.

When a woman is murdered in her home, Five-0 learns that one of their own has a deep connection to the victim's young daughter.

An immigrant entrepreneur cuts her own hair in front of the Sharks to demonstrate her products; an award-winning baker hopes to sweeten the deal with her healthy ready-to-eat frosting; a kid-preneur sister and brother duo pitch their lucrative interchangeable jewelry business; and three business partners are determined to convince the Sharks to hop on board with their wheelless skateboards. Also, an update on Phone Soap, that Lori Greiner invested in during season 6.

Antarctica is Earth's most remote and least explored continent. It is buried under as much as three miles of ice in some places, but recent satellite imagery has revealed what appear to be the tops of man-made pyramids scattered throughout the ice-covered landscape. But how is that possible? Ancient Astronaut theorists suggest that an ice-free Antarctica may have been colonized by extraterrestrials in the remote past, until a global catastrophe plunged it into the ice age. Is there a greater history on the continent than what mainstream scholars suggest? Scientists have reported strange magnetic anomalies radiating from beneath the ice, the Nazis allegedly made secret expeditions to the continent in search of a lost civilization, and government whistle blowers have come forward with claims of strange sightings. Perhaps hidden beneath the ice of this frozen continent lies the truth about our extraterrestrial origins

Wynonna looks for the sixth member of the Seven, and the trail leads her to a cannibal revenant. Meanwhile, Xavier tries to deal with his addiction, while Waverly unravels a mystery that Curtis left for her.

Bill's guests tonight include Oscar-nominated actor Bryan Cranston, "Savage Love" columnist Dan Savage, "¡Adios, America!" author and she-witch Ann Coulter, Reason.com editor-in-chief Nick Gillespie, and Cliffside Malibu's Richard Taite.

Frank, the Mayor, Erin and the DA's office contend with public outrage after a grand jury doesn't indict an NYPD officer for the controversial shooting of a teenager that was caught on video.

With help from Lucas, Dawson narrows her search for Declan Bode, a Satanist "person of interest" in Banshee's serial murders. An emboldened Calvin throws down a gauntlet to Proctor and Kurt. Carrie's recent vigilantism ends up putting both her and Deva in peril.

'The End of Polio' - Pakistan is the last battleground in the fight to eradicate polio: since the late 80s, new cases of the wild disease have dropped from hundreds of thousands per year to just hundreds. But in Pakistan's poorest areas, there is widespread distrust of vaccinators, and the Pakistani Taliban have openly condoned violence against them - especially after the CIA used a vaccinator to help track down Osama Bin Laden. VICE travels to Karachi to meet with the health workers putting their lives on the line to finally eradicate this disease.
'Collateral Damage' - Land mines are deadly weapons of war that remain a threat for years after the fighting is over. But even as international pressure has helped limit the use of land mines, unexploded cluster munitions are still in use, killing and maiming civilians every day. VICE travels to Myanmar and Laos to see the devastating effects of unexploded ordnance and to meet the trained disposal teams working to clean up these weapons before they claim more lives.

Coming Soon...

Stephen welcomes Lily Tomlin, actor Kumail Nanjiani, and a performance by stand-up comedian Ryan Hamilton.

Sol decides to tell Robert about his betrayal; Frankie wants to finally separate emotionally from Sol, but gets pulled back in.

The gang learn from Miette of a dance party taking place for performers and Serena is invited but her hopes of having Ash as her partner are foiled by Miette who asks Ash first.

As the two Autobot teams are reunited, an old friend returns as they find the Decepticon's headquarters and that Steeljaw is leading a Decepticon guerilla army.

After Rainbow Dash achieves her dream of becoming a Wonderbolt, she makes a disastrous first impression and gets saddled with a mortifying nickname.

The fifth set of hopefuls audition for the judges.

It is Elle Gardner's first day in the department as the newest consultant as it proves to be a baptism of fire as Zoe reveals to Max she is leaving for America, David finds himself struggling to fit it.