Piper's world is turned upside down when she is forced to confront the consequences of her actions and face new challenges.

Blackbeard's plans are complicated when a popular Pirate Captain comes to town and violently disagrees with his grand design. For his master plan to survive, Blackbeard must weigh the risks of ridding himself of a dangerous old friend. Meanwhile, trying to gain insight into the Commodore's mysterious endgame, Tom Lowe finds himself an unlikely instrument of Blackbeard's will.

Bill's special guests tonight include Anthony Weiner, Jim Geraghty, John Waters, Nicolle Wallace & Ralph Reed.

"Heroin Warfare" (correspondent: Suroosh Alvi) - Since the U.S. occupation of Afghanistan, heroin production in the region has skyrocketed, making the country the number-one producer by a large margin. Though Iran, Afghanistan's neighbor, is an ultraconservative country, Afghan heroin flowing across the border has actually caused Iran to have the worst heroin use problem in the world. Suroosh Alvi gets a rare look inside Iran to meet the suffering heroin addicts, and see how the country is coping with the illegal drug trade. "The Coldest War" (correspondent: David Choe) - With the polar ice caps shrinking due to global warming, new trade routes are being exposed, along with billions of dollars' worth of natural-resource reserves. This is prime real estate and the five nations bordering the Arctic are readying themselves to fight for it. David Choe heads north to witness NATO forces participating in the largest polar military exercise in history. The problem is that there's one non-NATO country that already considers itself rightful owner of the region: Russia. With Vladimir Putin's recent military annexation of Crimea, there's a definite possibility its aggressions will boil over, returning the international community to precarious Cold War footing.

Tonight guests are actor Channing Tatum, technology journalist Joshua Topolsky and actor, writer, and comedia Julian McCullough.

Ricky Gervais, Keb' Mo'

Natsu's "away team" has successfully rescued Lucy and Yukino, but now they're puzzling over the mystery of the two Lucys! And back in Crocus, Erza's battle against Kagura truly begins, a battle steeped in vengeance more than sport!

Ash learns about the Chateau where battles take place and is keen to take part.

Steel gets a cybernetic dog named Furbo and Extroyer is back, in search of a Giant Centipede Monster.

The finalists return to perform live one last time. The judges give their verdicts after each act performs.

Rita finds herself in a quandary when a fire in a care home for the elderly leaves her with access to a terminal patient whose ongoing treatment raises a number of concerns - ones that may not be popular if she opts to raise them with the regular medical staff. Lily treats a man with toothache, but persuading him to acknowledge the real cause of his pain proves to be a difficult task. Elsewhere, Connie questions Zoe's competence during a meeting with CEO Guy Self (guest star John Michie), and Lofty returns to the Emergency Department