Episode 5

JJ Chalmers learns how a warship performs one of its most dangerous and difficult manoeuvres, refuelling at sea. He joins a massive 39,000-ton tanker, operated by the Royal Fleet Auxiliary, as it conducts the dangerous operation just 40 metres apart from a moving warship out on the high seas. Kate Humble takes on the extreme Submarine Escape, Rescue, Abandonment & Survival course.