Andy Drake, a protege of Cowley, is arrested on suspicion of spying for the Chinese. Anxious to find out about Chinese security the K.G.B. plan to spring Drake whilst he is in transit from prison to court. Anticipating this, Cowley also intends to snatch him, but he has an ulterior motive - to catch the C15 mole who is passing on information to the Russians.—don @ minifie-1