Kara and her friends must rely on their inner strength and courage when an earthquake strikes National City. Also, Alex's mistrust of Hank reaches a breaking point when the earthquake traps them in the DEO with Jemm, a powerful alien escapee.

In the Live Semi-Finals, the top nine artists perform live in front of coaches Adam Levine, Blake Shelton, Gwen Stefani, and Pharrell Williams for America's votes.

Team Scorpion goes undercover at a university to find a hacker who infiltrates the Federal Reserve and threatens to collapse the world economy.

Dissatisfied with the Nationwide Callout results, Big Chief decides to host an epic Cash Days with 32 cars all competing for $50K. Daddy Dave and The Sonoma, Kye Kelly with the NOLA crew and OKC's fastest racers bring the heat. Who will be crowned the fastest in the nation?

The team investigates the murder of a fugitive diamond thief whose body was found by his bail bondsman; Marianna's brother discovers Rusty's relationship with Slider.

Peggy and Ed agree to follow through with their plan at the Motor Motel, Lou faces jurisdictional politics and Hanzee reports back to the Gerhardts.

Kate is offered a deal by Nina and an MI6 agent in modern day Paris, to Martin's chagrin. Meanwhile, Ballard convinces the FBI to allow him to take down Martin, Ilyana is enlisted as an operative in 2001 Prague and Terrance's secrets emerge.

On the set of the telenovela "Las Leyes de Pasión", things get pretty agitated when star Ana Sofia's ex-husband is cast as her new love interest.

Deeks is arrested and interrogated in connection with the murder of his former partner, while the team tries to prove his innocence.

Ana institutes an honesty policy with mixed results; Isabela goes postal when her twin sister pays a birthday visit.

MSNBC ransacks the home of terrorism suspects on live TV, and former Daily Show host Jon Stewart returns to shame Congress into renewing health care for 9/11 first responders.

Coming Soon...

President Obama awkwardly attempts to calm America's fears about ISIS, and Larry discusses pandering politicians with Jon Glaser, Rory Albanese and Mike Yard.

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Stephen welcomes actor Steve Carell, plus an interview with and musical performance by Jennifer Hudson.

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Jesse is forced to relive tragic events when he treats the seriously ill sister of a former patient. Sparks fly as Fran and Jac clash over the treatment of a patient. Fletch and Raf play cupid with Cara.