25 men and women, including an ex-SAS operator working undercover as a mole, face the latest intense course - beginning with a swim to a remote Scottish island.
Runtime: 47
Starts: Ant Middleton, Mark Billingham, Mark Billingham, Jason Fox, Matthew Ollerton
Director: Freddie Foss-Smith, Caroline O'Shaughnessy, Amy Ruffell, Phil Turner, Max Shapira