Autumn 1941 and a fierce war rages amid the treacherous waters of the Dover Strait. It is fought by the gun and torpedo boats of Britain's Coastal Forces: fast, frail vessels that do battle against the best of Germany's Kriegsmarine. The crews are mainly volunteers; men plucked from civilian life and new to the maelstrom of brutal combat. Each take a different route to meet such a personal challenge and prove every bit as powerful, and vulnerable,...