When a tycoon apparently falls from his yacht and drowns, the two secret service operatives who have in fact murdered him are also killed. The top secret governmental organisation that had employed them needs to find new recruits. Peter Slater, a former SAS soldier, is working as a games master in a public school. When he foils an attempt by terrorists to kidnap an Arab boy, the boy is hurt and Slater is sacked. Down on his luck he is framed for the murder of his girlfriend, and blackmailed into working for MI7. The missions he is asked to undertake on behalf of the British government become so evil that he finds himself preferring to die rather than complete these missions successfully.