chunk: Meanwhile, on the industrial world of Giedi Prime, the sadistic Baron Vladimir Harkonnen tells his nephews Glossu Rabban and Feyd-Rautha about his plan to eliminate the Atreides by manipulating someone in House Atreides into betraying the Duke. The Atreides leave their homeworld Caladan for Arrakis, a barren desert planet populated by gigantic sandworms. The native people of Arrakis are called the Fremen, a mysterious people that have long held a prophecy that a messiah would come to lead them to freedom. Upon arrival on Arrakis, Leto is informed by one of his right-hand men, Duncan Idaho, that the Fremen have been underestimated, as they exist in vast numbers and could prove to be powerful allies. Leto begins to gain the trust of the Fremen, but before the Duke can establish an alliance, the Harkonnens launch their attack.