Cassie starts to move in a whole new direction with Sam. Middleton hosts its annual Lights Festival and some unforeseen changes happen.

A potential buyer for Barry's Grandma's Hangover Cure turns out to be an old classmate of Cooper and Neal's, with whom Neal refuses to work, due to an issue from their past. Meanwhile, after a pipe bursts in her apartment, Kelly stays with Josh and Leslie and becomes obsessed with discovering what's behind a secret door in their home.

As the Castle of Lions continues to prepare for departure, the team is met by the arrival of a local Arusian investigating the castle. Allura heads to meet the villagers along with Coran, Hunk, Keith and Lance while Pidge and Shiro tend to the rescued prisoners from the Galra battleship.

Cooper and Kelly try to make each other jealous by pretending to enjoy dating other people, while Neal and Barry end up dating a polyamorous girl together.

Khloé travels to Napa with Kourtney and Kris, where she needs to make a decision about her divorce; Scott tries to rid himself of the alleged Kardashian Curse.

Jesse explores his newfound power with Cassidy's help. Meanwhile, armed with new information, Tulip tries to convince Jesse to set out for revenge.

Former country star "Burnin'" Vernon Brown's freewheeling lifestyle is curbed when a judge orders him to pay back child support for a daughter he never knew existed. Posing as a preacher, he starts to rebuild his life.

The chefs are taking a big spin around the market with three rounds of Food Wheel games! First, chefs spin the budget wheel to win a paltry $9.04 for their pork dish. Next, chefs whirl the color wheel and land on a high-end lunch featuring the color yellow and wild boar sausage. Finally, a turn on the high/low wheels send them in search of wagyu rib eye and popcorn for their spicy dinner.

While Jaime weighs his options, Cersei answers a request. Tyrion's plans bear fruit. Arya faces a new test.

When the real preacher shows up, Vernon and Walt hatch a plan to get rid of him. Debbie (Joey Lauren Adams) has to jump through hoops with Child Services to prove she's a good mother to Charlotte.

The whole Brown family is preparing for an epic trip to Hawaii, but Robyn is nervous about travelling with a newborn. Meanwhile Meri and Janelle continue their therapy. And all four wives turn their focus on Kody and reveal some of his biggest secrets.

Erlich tries to be honest with Richard, who has mixed emotions about their friendship and the future of Pied Piper. Jared's new company apparel turns heads but fuels yet another clash between Dinesh and Gilfoyle.

Kaetenay returns to London with Ethan and Malcolm to prevent the darkness that he has foreseen. Meanwhile, Vanessa realizes who Sweet really is, while Caliban is reunited with his family. Elsewhere, Dorian grows bored with Lily's revolution and makes his own plans.

Christine goes on the counter-attack, in an attempt to force a settlement with Kirkland & Allen, while exploring more anonymous ways to service her GFE clients.

The Pod heads down to Cuba where they are challenged to reevaluate their personal and professional futures.

A pre-Christmas celebration for Selina's family at Camp David camouflages her team's secret negotiations. Amy and Dan work on Jonah's human side after a terrible debate performance in New Hampshire.

John Oliver Covers Ins and Outs of Retirement Plans: Saving for retirement means navigating a potential minefield of high fees and bad advice - Last Week Tonight is here to help.

In the half-hour season finale, the Mystery Mobile breaks down in farm country.

The bottom three contestants from the invention test face off in the elimination pressure test. Contestants have just two hours to recreate two of guest chef Ross Lusted's signature dishes.

There is money to be made investing in cargos from the New World, but while Marlowe invests in tobacco and potato products, Will would rather invest in building a new theatre. But when Will's savings go missing, he is forced to make a rather unusual bargain with his rival Robert Greene.

Meanwhile, Kate's frustration with the lack of roles for women leads her to make a rather dramatic intervention.