Heston's Mission Impossible

Season 1, Episode 4 - Royal Navy
Airdate: 10/Jan/2017
Summary:

             Heston boards the nuclear-powered Royal Navy sub, HMS Turbulent, to shake up the sailors” food. It”s not long before Heston realises he”s got a big job on his hands: the men are out on patrol for 90 days at a time, and they”re eating three stodgy meals a day. And with so little opportunity for exercise on board, it” not a healthy diet – especially when the submariners” jobs require very high levels of concentration.