The semifinals continue in Los Angeles where competing ninjas face up to 10 challenging obstacles, including the new Over Under and Flipped Around. The 2 fastest ninjas face off on the Power Tower for a Safety Pass going into the National Finals.

Gabby and Rachel's men travel across Europe on their journey to find love; two lucky men join the leading ladies on an unforgettable adventure in Paris; Gabby challenges her men to show their willingness to fight for her love.

Emboldened by recent successes, partners throw caution to the wind and escalate their enterprise to new levels.

With missing friends and mysteries abound, Liz returns to fringe science, but in working alongside her new mentor, she's confronted with an unsettling revelation and a difficult choice, meanwhile, Maria uncovers the truth behind the "messages" she's been receiving. Elsewhere, the bond between brothers is tested when Max keeps an explosive secret from Michael, putting them at odds during a critical moment. Lastly, Isobel tries to pull answers out of Tezca, only to discover that the villain in her story is not as clear-cut as she may seem.

Tensions run high when Murphy's plans hit a bump in the road. Josh's vendetta against Murphy grows with the help of a new friend.

The investigation into Wheezer's crash puts Lexi in the hot seat. But when a wildfire threatens Crystal's community.

Unable to swing working from home any longer, Harper returns to a rapidly changing - and intensifying - atmosphere at Pierpoint. As directives from new U.S. leadership set the office on edge, Robert attempts to hook a client, while Yasmin receives pushback from her young recruit.

President Biden plans to close border wall gaps, Roy Wood Jr. explores the Black origins of house music, and Transportation Secretary Pete Buttigieg discusses U.S. infrastructure challenges.

Jimmy welcomes the cast of "Reservation Dogs", rapper Chance the Rapper, and a musical performance by Chance the Rapper & Joey Bada$$.

Stephen welcomes comic Patton Oswalt, U.S. Secretary of Energy Jennifer Granholm, and a musical performance by James Taylor.

A pointed remark from Masaba during a fashion reality show causes a stir. At her brand's 10-year anniversary party, Masaba receives devastating news.

With the future of the Island at steak, the friends band together - and fight harder than ever before - to protect what's really important.

Luka convinces Esteban to throw his birthday bash at the Coluccis' house. Jana asks Dixon to come with her to the party. Sebas and MJ get into a fight.

It's the night of the play and Amber's nervous. She hopes her dad, who's stuck in traffic, makes it in time to see her debut.

Larry may have a way for the girls get home to 1988... but it's going to require a lot of adult Erin... and Mac may not want to go home to her old life after spending time with Dylan.

While feeling betrayed by a friend, Michael lunches with his mother, learns about Colin's new addition and confronts some hard truths about himself.

Slipping in and out of consciousness, a trapped Liv must decide whether to continue fighting for survival - or just let go.

Season finale. Josh attempts to make his first dance magical and meaningful. At home, his parents revisit a video of their first dance.

The team pitches their concept to Quimera's record label. Lázaro's TV debut ruffles some feathers.

Claire's mother, Diane, takes the stand. In support of her sister, Kate, she throws suspicion onto Nathan as she further reveals the tumultuous relationship between him and Claire.

Cathy and Colin are back from their Italian holiday and hosting a soiree... to show off how popular they are. But as the duty-free wine flows, tensions soon bubble to the surface.

The Titans time travel back to the 1990s so they can visit a video store but encounter a familiar foe.