Dropped naked in the Scottish wilderness, bar their socks and shoes, strangers Merel from the Netherlands and Mike and couple Jenny and Steve have 3 days and 2 nights to survive their environment and race to a checkpoint
Sion and Gareth take on Dylan and Pete in a race deep in the Scottish Highlands, completely naked. Gareth and Sion struggle without their gadgets, while Dylan and Pete are attacked by insects and beaten by the searing heat with no shade.
Ant and Kim go off-route in search of food, while Terry and Luke rally together when an injury unexpectedly hinders their progress. Two teams miles off the beaten path - without a thread of clothing!
