Dr. David Banner has been gainfully employed at the Joshua-Lambert Research Institute (as David Bannion) where he and a team of scientists are putting the final touches on a Gamma Transponder, which he intends to use to cure him of his ability to turn into the Hulk. He has not changed into the Hulk for two years since he met a young widow, Maggie Shaw, with whom he is romantically involved. By chance, he is recognized by a former student of his, Donald Blake. Blake reveals that, on an expedition in Norway, he was bound into possession of an enchanted hammer containing the soul of Thor, an immortal warrior banished by Odin to Earth. Thor is reluctantly compelled to serve Blake, who is unnerved by this. Thor damages equipment and angers Banner until he turns into the Hulk, who easily fights him off and leaves.