While on holiday in Cornwall three young friends discover a smugglers hideout under an old abandoned church hidden in the woods. They are captured by the smugglers and imprisoned aboard an ex-naval torpedo boat which the smugglers have adapted for their use. The three friends experience a series of thrilling and frightening adventures a long way from home leading to a powerful and exciting climax...A gripping yarn which is well-paced with plenty of action for our three teenage heroes, the plot races on from crisis to crisis in this exciting naval chase...