Synopsis: Loki uses his wit to free himself from a tree of Asgard in which he was imprisoned by causing a leaf to fall into the eye of Heimdall. The tear Heimdall shed allowed Loki to break free of the curse which stated he was destined to stay in the tree until his plight caused someone to shed a tear. He immediately sets out to locate Thor who has gone absent for many years. Loki uses a mental link he forged with Thorís hammer to view him.
Loki travels across the rainbow bridge between Asgard and Earth to exact his revenge. He disguises himself as a human and creates a disturbance to attract Thor. When Thor arrives Loki reveals himself and challenges Thor to a dual in front of the crowd. Thorís pride accepts the challenge. Loki hypnotizes Thor and tricks him into giving over his hammer. Loki gets distracted enough to miss Thor change to Dr. Blake. This transformation frees Thor from the hypnosis and then slips back over to the hammer left on the ground.
After changing back to Thor he chases Loki through New York City while Loki puts humans in danger in his fleeing from Thor. Loki brings the picture of a winged horse alive to help him flee but Thor drops him into the water which renders him helpless (he cannot use his magic in water). Thor pulls him out to Lokiís surprise. Thor ties Loki to his hammer and sends him back to Asgard. Asgardian gods witness this and praise Thorís good work. Odin is proud of his oldest son. The hammer returns to Thor on Earth.