Man overboard!

In the summer of 1943, sixteen-year-old Scott and his friend Adam find jobs as deckhands on the Rapids Prince, a steamship that runs the rapids of the St. Lawrence River between Prescott and Montreal, Quebec. There have been rumours that a German agent has landed in Canada from a U-boat, and the boys soon learn that the agent may actually be on board the ship. Unable to tell anybody what they know, it is up to them to expose the agent and save t...