Donald Harris and his father take Peter Dent for a two-week cruise aboard their boat, the Chinook, north to the secluded islands off the coast of British Columbia.

Donald and Peter enjoy a short stay at a local summer camp. But when the Chinook suddenly disappears one night along with Donald’s father and the crew, suspicions are raised. Why and where was it taken? By whom? Join Peter and Donald in their search for the missing boat and the explanation to the mysterious disappearance.