Regan absents himself from the stakeout of a gang who rob wealthy tourists to come to the aid of Alan Ember, who, years earlier, had been a helpful informant. Now a rich businessman he has had a phone call to say that his son Paul has been kidnapped for a ransom of ten thousand pounds. Against Regan's advice Ember pays the ransom and the boy is returned, but the reunion soon turns sour.
—don @ minifie-1