Action adventure. In 1957, at the height of the Cold War, intrepid archaeologist Indiana Jones is called back into action when an old colleague is kidnapped. The news of his friend's plight is brought to Dr Jones by a young rebel named Mutt. Soon the two find themselves entangled in a Soviet plot to unleash the power of a set of mysterious crystal skulls. With danger, deception and secrets from the past being uncovered, this could be Indy's toughest quest yet.