The fourth film in the Indiana Jones series starring Harrison Ford. Set at the height of Cold War paranoia during the 1950s, the story finds the intrepid archaeologist involved in a plot involving Soviet agents. They want Indy (Ford) to find a legendary crystal skull that is said to grant the owner supernatural powers. If the Soviets get their hands on it, they will be able to control the world. Our hero manages to escape from the Russians and soon he is in a race to find the skull. He is joined by Mutt (Shia LaBeouf), the son of Indy's one-time love, Marion (Karen Allen). Together, the pair travel to South America, where the skull is reputed to be found. There they join forces with Marion. At the same time, the Soviet agents, led by the brilliant, ice-cold Irina Spalko (Cate Blanchett), are also hot on the trail. They have the help of Mac (Ray Winstone), Indy's one time partner - but which side is Mac really on? Also involved is Ox (John Hurt), a brilliant professor who was driven insane after being exposed to the crystal skull. Can Indy get to the prize first, or will the Soviets be able to dominate the world?