The Semifinals continue in Las Vegas where the ninjas take on a longer course featuring 10 iconic obstacles from the past. The fastest advance to the National Finals and compete in head-to-head races.

When Vikram attempts to return to 1847 (via a homemade time machine), he inadvertently travels the entire team back to the days of King Arthur, where they learn the truth about a Knight of the Round Table, Camelot, and Elaine.

Jon Stewart dives into Trump's crude birthday card to Epstein and his desperate attempts to distract MAGA with Hillary's emails, the release of the MLK files, and the return of racist football mascots. Plus, Jon reacts to CBS cancelling "The Late Show with Stephen Colbert" and calls upon corporations, advertisers, and institutions to "sack up" with the help of the "Go Fuck Yourself" choir. Chairman of the Los Angeles Times and of ImmunityBio, Dr. Patrick Soon-Shiong sits down with Jon Stewart to share how his groundbreaking work in cancer research and his surprising purchase of the Los Angeles Times in 2018 are both part of his vision to heal the country and give everyone an opportunity at the American dream. He offers a background to his work in finding cancer treatments that harness the body's natural immunity - a departure from decades of the harmful, money-making chemotherapy standard - and shares how growing up in apartheid South Africa gave him a deep appreciation for news media.

Jimmy welcomes comedian and actor Adam Sandler, basketball player Sabrina Ionescu, and a performance by Jessie Murph.

Stephen welcomes actress Sandra Oh and actor Dave Franco.

Tesla issues a deadly ultimatum as a last resort. Can Sharp and Alek, stuck on opposing sides, prevent the conflict from escalating before it's too late?

At a party for her husband's new boss, Sophie tries to make a good impression and finds herself drawn to the alluring and mysterious Margo.

Turner takes the investigation to new extremes - with serious repercussions. Jill gets caught up in Vasquez's conflict with her ex.

Yesterday's winners are battling it out in a service challenge at Vue De Monde.