Sailor S01E03 - Happy Birthday

Ark Royal is 21 years old. The cake is baked and iced: the messages of congratulations are pouring in. But one message is different. It's a mayday call from the Americans. Three hundred miles away somewhere in the Atlantic there is a sick sailor on a US nuclear submarine who may die of acute peritonitis, unless he can be airlifted away and operated upon quickly. The party is dropped and preparations for the ' casevac ' begin - a race against time.