Never before has the mighty Thor faced a foe as dangerous as Loki, the God of Mischief! When Loki travels to Earth, the trickster god will stop at nothing to get revenge on his hated brother Thor, including unleashing his magic on the helpless mortals!
In the distant future there is complete peace on Earth. War and its weapons no longer exist. However, a dissatisfied citizen, Zarko, has invented a time machine and plans to travel back to the 20th century in order to steal a nuclear bomb. The same bomb which the mighty Thor is helping the military test.
Loki escapes from Asgard with a scheme to forever defeat his brother the mighty Thor. Having learned the secret to Thor's power his plan might succeed this time.
A gang boss is wounded during his escape from police custody and Dr Donald Blake is taken by the gang to save the wounded man's life. He is knocking on death's door but he finds the mighty Thor!
Ugarth, the ruler of Xarta, and his son Zano are have a sinister plan to conquer Earth by using their power to transform into any object/creature. Can Thor liberate the human race from the Xartan scheme?
Sandu, a simple street performer, has his powers of ESP increased thousand-fold by Loki, becoming Loki's champion on Earth and a formidable opponent even for the mighty Thor.
Loki is still imprisoned on Asgard but he uses his mastery of magic to bewitch Thor's hammer, sending it to Asgard. In pursuit of his hammer Thor too comes to Asgard. Little does he know that on Asgard, Loki is his equal!
Thor has allied with his brother Loki to usher in an era of destruction on the Earth. Why would Earth's former champion turn to evil ways? Only Loki knows the reason.
After framing the Hulk, Loki misdirects the Teen Brigades' distress call to Thor, which is then picked up by Iron Man, Ant-man and the Wasp. They pursue the Hulk and try to reason with him but his trust cannot be easily gained. Meanwhile Thor heads to Asgard in order to avenge Loki's evil deeds.
