Ultra endurance athlete Mark Beaumont and former pro road cyclist James Lowsley-Williams take on the legendary British endurance ride from Lands End to John O’Groats - the two furthest points in the UK - aiming for a Fastest Known Time for The Relay. Four weeks after their relay attempt, the duo will take on the World Record for the fastest time on a tandem! THe goal of their relay attempt is to recon the route, and take the FKT for a relay attempt. Mark and James take turns, one hour on and one hour off the bike, non stop across 1300 kilometres in a gruelling test of physical and mental strength.