A hard-nosed Chicago cop is sent to London to bring back an American mobster being held for extradition. Brannigan in his Irish-American way brings American law to the people of Scotland Yard but has to contend with a stuffy old London first.
British reporters suspect an international cover-up of a global disaster in progress... and they're right. Hysterical panic has engulfed the world after the United States and the Soviet Union simultaneously detonate nuclear devices and have caused the orbit of the Earth to alter, sending it hurtling towards the sun.
A professional thief is sprung from prison with the assistance of a new partner who wants to know where he's hid his loot.