As the summit prize pot dwindles, trust will be tested as the mountain serves up a jaw dropping challenge. A massive fail leads to one hiker threatening to leave the competition as a secret chaser is released to hunt the group down.

The group learns about a chaser racing to catch them, so will need to step it up a gear if they want to avoid their cash being stolen. A terrifying obstacle stands in their way and two of the biggest competitors go head to head.

As a chaser closes in to catch the hiking group, a big twist turns the game on its head. A beautiful friendship is torn apart and competitors are forced to turn on each other in a bid to survive.