The song; "What Happens When The Engine Stops?" Is this about life at sea aboard an aircraft carrier. No it's about a post-apocalyptic train with a perpetual machine machine that saves humanity. To point out that's very close to life aboard a nuclear-powered warship. An aircraft carrier is four and half acres of America’s sovereign territory, the embodiment of power projection abroad for our democracy that can deliver a humanitarian response or combat capability anywhere on the world’s oceans, with enough power to circle the world over 13 times without refueling. But when it's dead in the water, it's a target for the enemy. Ravaged by the sea, the entire crew will freeze and die.