In 1957, World War II hero Indiana Jones (Harrison Ford) and his partner George 'Mac' McHale are kidnapped by a group of Soviet agents led by Colonel Dr. Irina Spalko (Cate Blanchett). The Soviets infiltrate a warehouse labeled 'Warehouse 51' in Nevada and force Jones to find a crate containing the remains of an extraterrestrial that crashed ten years earlier near Roswell, New Mexico. After finding the crate, with its highly magnetic contents, Mac, bribed by the Soviets, double-crosses Jones.After a running battle with the Soviets, Indiana manages to escape on a rocket sled into the desert; he stumbles into a deserted town, part of a nuclear test site and survives a nuclear detonation by hiding in a lead-lined refrigerator. He is later debriefed by the FBI, who believe he's also working for the Soviets. Shortly after returning to Marshall College, Jones is offered an indefinite leave of absence to avoid being fired because of the incident.At a train station, Jones is stopped by greaser Henry 'Mutt' Williams (Shia LeBouf), who tells him that his old colleague Harold Oxley was kidnapped after discovering a crystal skull in Peru. Jones tells Mutt about the legend of crystal skulls found in the mystical city of Akator and whoever returns the skull to the city would be given control over its supernatural powers. Mutt gives Jones a letter from his mother, who is also being held captive, containing a riddle