Lou helps Gwen build her confidence when she learns that her parents plan to send her to school at the end of the summer. Ava discovers a hot spring at Camp Kikiwaka and enlists Noah to keep it a secret.

Mating season turned out to be less successful than everyone had hoped, leading them to question the possibility of the mermaids procreating on land. Ryn brings a new mate ashore for the good of the colony, but it raises emotional questions for Ben and Maddie.

While Liv and Clive investigate the death of a drag queen strangled with a pearl necklace, Ravi asks Major to pose as "gigolo bait" to help track down some missing Freylich's kids.

The cooks have 60 minutes to present their best beef dish to the judges.

Eustace and Raleigh set out in search of a deer to replenish their food stores; Jason faces the moment of truth in his attempt to create his own steel; Jake hauls 400 pounds of fresh elk meat out of the mountains; Kidd and Harry pack supplies into Idaho's remote backcountry; and Morgan and Margaret hope that a new trapline will save the day.

Emotions are at an all time high as everyone tries to pick up the pieces after the shocking details of Mike's sentencing are revealed.

A young mother's passionate affair with an old boyfriend ignites suspicion when someone close to both of them is murdered.

Talon tries to outmaneuver her new rival while Gwynn struggles to maintain control of the Outpost. A Baron named Tobin marches in and makes an outrageous proposal. The Mistress bitterly reunites with a close relative.

Gerald is back to see Dr. Lee and a hand specialist about a huge, intrusive bump on his middle finger; Vinnie has a large, embarrassing birthmark on his neck; Leta has a lump on the back of her thigh that she has been hiding from her fiancée.

File clerk Tammy Lohr is seduced by a married police officer; things heat up when his wife receives an anonymous letter revealing the affair followed by a mysterious fire, a brutal stabbing and an elaborate plot to cover it up.

Mike Pihl looks for help from a logging legend; Jason Rygaard faces his biggest test as the new boss and his father Craig's future at Rygaard logging is questioned; The Harkness crew battles winter storms and vertical terrain in the Cascade Mountains; and Wade Etienne goes after valuable hardwood giants with custom machines in Indiana.

With Mike's sentencing behind him, the roomies head up north to a dude ranch for a weekend getaway. The Guido's try to fish, Snooki drinks like a fish, and Ronnie tells a spooky ghost story down by the camp fire.

When a massive plume of smoke suddenly erupts from the ground in Manhattan, experts investigate if this terrifying event is evidence of a volcano that's waking up beneath the streets of New York City -- and if it's almost due to blow.

JD's throws a star-studded skate party. Snoop dishes out tough love on Bow. Brat blows up on LisaRaye when bankruptcy pushes her to a breaking point. Waka warns Deb that Brandon needs to steer clear of the family or - else.

Flammable carpets become a headache for Ken and Christine.

On her day off, Teresa is hunted by a sicario from her previous life while on the road.

When a man from Cat's past becomes instrumental in helping the Governor, Cat and Ana Dumont find themselves in a dangerous situation.

Holmes and Watson work to determine if a long dormant serial killer has resurfaced in the wake of a sculptor's murder in New York City. Also, Watson suspects Holmes is keeping something from her regarding tech billionaire Odin Reichenbach.

Food Network Star alums Alex McCoy and Jay Ducote are in the house to outshine Bobby Flay. Food Network Star winner Damaris Phillips teams up with Chef Richard Blais to ensure that Bobby's star burns out.

In the white ice of Antarctica, satellites discover a mysterious trail of sinister black objects, and when experts discover that it's moving, they use cutting-edge tech to investigate who or what is behind this strange phenomena.

Trevor Noah sits down with journalist and author, Isha Sesay.

Norah O'Donnell, anchor of the CBS EVENING NEWS; actor Topher Grace; stand-up comedy performance by Ahamed Weinberg.