Modesty Blaise, a secret agent with the ability to instantly change her appearance, is used by the British government as a decoy to foil a diamond heist. However, she is aware of the setup and enlists the help of her sidekick Willie Garvin and other allies to outwit the authorities. Meanwhile, Gabriel, the diamond thief, has his own plans for Blaise and Garvin, as they converge on his island hideaway.

Modesty Blaise
Cunning ex-con Modesty Blaise and her skilled partner Willie Garvin join forces to thwart their rival Gabriel's plan to steal valuable diamonds intended for Modesty's powerful adoptive father, a Sheikh, while working for the British Secret Service.