Vincent is forced to undergo a series of tests orchestrated by the mystery buyer in order to keep from being exposed. Cat, JT and Heather work to exonerate Vincent.
The historians take a trip on the legendary Flying Scotsman as they continue their exploration of the age of steam, discovering how the railways revolutionised communication with the transportation of mail.
Marty begins an epic overland journey into the Alaskan bush. Morgan clashes with a ravenous grizzly bear.
At Polar, a truck crashes into a snowbank. Legendary Alex Debogorski makes his return by taking on an untested crossing. The Polar boss tests a new driver. Lisa Kelly encounters a monster incline. Two long-time rivals meet deep in the wilderness.
Kentucky hunters and their dogs take Steve hunting for gray squirrels and cottontails, yielding a meal of biscuits, gravy and fried small game.
Tonight either Zakiyah or Michelle will be evicted, but they won't be alone as it's double eviction night!
Zeta steals Princess Samira's magic staff and uses it to turn a tree into giant chicken which she uses to cause trouble in Zahramay Falls.
Tink tries to trick the Snikes into thinking there is a Snike-eating Gumble on the loose.
A gunshot forces Grace to make a difficult decision. Sophia's father comes to take her back to Phoenix. Charity gives her husband an ultimatum.
When Jayme learns that her online boyfriend is fake and that he is catfishing other women as well, she enlists the help of Nev and Max to stop him.
Chelsea's niece steps in as co-host, and Bryce Dallas Howard offers tips on growing up in a famous family. James Carville marvels at Trump's behavior.
Guests: comedian Jeff David and actress Rachel Bloom.Games performed: Hollywood director, scenes from a hat, duet, props and helping hands
The doctors meet a female war veteran that was struck by lightning leaving her disfigured. Then, they help a woman who has a misplaced toe on each foot.
Mark and Paul head to L.A. to visit a new location and Paul cooks a special meal for Mark and his wife at the restaurant where they met. Also: Donnie invites Alma to do an interview with Entertainment Tonight for Mother's Day.
Jon comes to blows with Kate before clashing with Diags, who is angered by his treatment of Dan. Gemma and Bobby dish out agony aunt advice across the airwaves.
Do the women in charge of a haunted armory have anything to do with the paranormal activity there?
A countdown of the wildest animal videos on the Internet.
Tonight the Power Of Veto is on the line, will it save Zakiyah or Michelle?