During a mission, British secret agent, Geoff Boldman encounters a fly named Zip who offers to help due to his size being ideal for eavesdropping. As they work together, Geoff may be good in a gunfight, but he's reckless; and Zip is good at stealth but he's a bit of a coward. The two have to tolerate each other's flaws as they battle the terrorist organisation, Seize, with members such as mad Russian scientist Dr. Nayk and hulking mercenary, Bullfrog.—Adam Luff