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.
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?
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!
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.