Haulage heel Steve Reynolds, played by Richard Dix, is a trucker guy who falls foul of a scheme that he uncovers from what seems like a series of accidents, and may in fact just be that, a series of accidents.
Indeed and for whatever reason, there are questions unanswered at the conclusion of this tale, possibly the greatest of these being why is this film called The Thirteenth Hour, and what is the thirteenth hour and what in fact is it the thirteenth hour of?