HMS Queen Elizabeth goes on dangerous sea trials for the first time in the North Sea, where every part of the vessel is put to the test and the first aircraft lands on the deck. After a few days at sea, the first problems start to emerge, including an explosion, a dangerous fuel leak, and some strange noises. Meanwhile, a crew member reveals how the Navy helped him make a fresh start from a life of crime, and the ship's Muslim chef works out how to cook pork without offending his religion