A documentary following 4 lads and 1 ukulele along the GR20, 14 days crossing Corsica's rugged heart on Europe's toughest trail. After being inspired by Granny Sue, the boys underestimate the challenges ahead. Following in her footsteps they decide to walk the 180km GR20 route,  as she did 34 years earlier. On the trail they experience dehydration, malnourishment and physical exhaustion all whilst enduring the searing Mediterranean heat. Over 14 days they capture the islands natural beauty from sunrise to sunset. But with a 70% failure rate will the lads handle everything that Corsica can throw at them and how could a Ukulele possibly help?