The Qualifying rounds continue in Las Vegas on the world's most challenging obstacle course. The top 20 athletes of the night will advance to the semifinals.

When Kansas becomes a battleground in the national debate over slavery, settlers on both sides of the issue pour into the territory to determine its future as a free or slave state in its eventual admission to the Union.

The team goes to a college campus with a world-class observatory to discover who is using the Crystal of Dr. John Dee to steal people's memories, in order to own the future.

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Jimmy welcomes actor Javier Bardem, actress Carrie Coon, and comedian John Crist.

Stephen welcomes actress Mariska Hargitay and Senator Tammy Duckworth.

Barry hitches a ride to the final frontier. As an operative's cover story begins to crumble, Luke and Emma seek help from an unexpected ally.

Facing a crossroads, the Valley Forge team must find a way forward as Will and Shane combine their strengths to snag a potential lifeline.

Aniela has a change of heart when it comes to the fate of the school, so she takes things into her own hands - along with a pair of unlikely allies.

Poh sets today's Sweet Week pressure test providing not one, but three of her extraordinary desserts for the cooks to replicate. Laura, Beau, Andre and Callum will battle it out to win immunity.