In 1936, archaeologists and adventurers of the U.S. government hired Indiana Jones to find the Ark of the Covenant before the Nazis could obtain its extraordinary powers.
In 1935, Indiana Jones is tasked by Indian villagers with reclaiming a rock stolen from them by a secret cult beneath the catacombs of an ancient palace.
In 1938, after his father goes missing while pursuing the Holy Grail, Indiana Jones finds himself up against the Nazis again to stop them from obtaining its powers.