The duo face their fears, from dangling on a trapeze and tackling fatherhood to performing stand-up comedy in front of a Glasgow crowd.

The friends push each other out of their comfort zones as Ralf takes Will back to school while Will challenges Ralf to an uphill tandem ride.

Will and Ralf examine what it means to be a man in the modern age by visiting a nail salon, getting their hands dirty on a building site, and discovering their inner drag divas.

Will Mellor and Ralf Little sample a sustainable food trend - insects - explore the realities of daily life in an eco-village, and try to tough it out overnight in the wild.

Acting friends Will Mellor and Ralf Little meet the world's strongest woman, learn calming Buddhist practices, and challenge themselves in an explosive training drill.

Will Mellor and Ralf Little test their teamwork skills driving a tank blindfolded, competing in wheelchair basketball, and rescuing 'survivors' during an earthquake emergency.