In a misguided attempt to bond with his son, Bill McCrindle drags a reluctant Robbie on a poorly planned camping trip deep into the harsh Scottish Highlands. Cold, wet and lost Robbie looses patience with his poorly prepared Father, but the Old Man is insistent, this time they will climb the Munro. When Robbie accidentally discovers his father has had major heart surgery and kept it secret, he refuses to go on. The ensuing argument threatens to drive a wedge between the two men, but when Bill insists they keep climbing, Robbie storms off, leaving his Father to risk his life struggling for the summit.
