Arms dealer Giles de Vere is prompting NATO's latest weapon known as "Bright Star". Captain Percival has got wind that de Vere selling to the Soviets, via Switzerland so has tampered with the missile on a routine check..

Journalist Malcolm Russell gives out addresses of British intelligence operatives in a newspaper article. Ewan Benman's friend is murdered and he wants revenge. Cap. Percival needs to Russell alive for the greater good.

Two fake British passports flag up a possible terrorist attack using a bomb. Learning that the pair came via Turkey, Capt. Percival and his team gamble that the attack is meant for a hard line Israeli minister going to Checkers.