Rob Beckett and Romesh Ranganathan meet professionals including Luke Littler as they prepare to play a match at Alexandra Palace during the PDC World Darts Championship.

Comedians Rob Beckett and Romesh Ranganathan enter the world of mixed martial arts, visiting the Ultimate Fighting Championship's International Fight Week in Vegas to train with the stars before taking on a one-on-one UFC challenge on top of the Eiffel Tower.

Scottish band Bleed from Within try to educate Rob Beckett and Romesh Ranganathan in the ways of the headbanger in time for a surprise performance of Metallica's Enter Sandman at the Download festival in front of 4,000 fans. The boys also get some extra tips from US rock stars Wheatus and Queens of the Stone Age.

Rob Beckett and Romesh Ranganathan take on more challenges, beginning by heading off to Los Angeles to throw themselves into the world of Hollywood stuntmen. They meet The Fall Guy stars Ryan Gosling and Emily Blunt before training with the film's director David Leitch, then head back to the UK to perform a stunt on Hollyoaks.