When Flight 42 takes off, the pilot and passengers presume that their journey will be a pleasant one across northern America. Little do they know that their Boeing 757 aircraft will face an unidentifiable storm, one completely unrecognisable from anything on this Earth. After having no choice but to enter the void, they find themselves transported to 1940, France, in the middle of an air-raid between Allied and German forces during World War Two. Dodging bullets and bombs, the flight has to battle to make it back to the present day, but will they manage without changing the course of history forever?