Half Man - Half Alien - All Hero. The Guyver is the ultimate weapon, a mysterious mecha of alien design. When activated the unit interfaces with human subjects, transforming them into powerfulcombatants. Something alien has invaded the body of Sean Barker and it's the ultimate power of the Guyver. While searching for the truth, he is drawn into the caves of Utah where hediscovers the Kronos Corporation, a corrupt alien corporate empire with two deadly aims.... to steal the super powers of the Guyver and to take control of the Earth. An incredible battle ensues between the two most powerful forces in the galaxy, the result of which may ultimately decide the fate of mankind.