As Tory channels his despair into making distress signals, Richard does his best to cheer him up by designing an automatic fish-catching device and a range of ‘4th of July' inspired inventions. But will they see all their hard work go up in smoke?

Our battle-scarred duo decides to bury their differences, down weapons and pick up their tools, in a last-ditch attempt to escape the island. In this nail-biting final episode, it's all or nothing, as the boys decide flight is their only option. But will our magnificent men take to the skies or will any hopes of finally reaching civilisation crash and burn