Thor gets a mystic cry for help from Dr. Strange, and when he gets to Doc’s house, he finds him on the floor in need of medical attention.
So he turns into Don Blake. This is one of the first issues where we see Donald Blake actually performing as a doctor as part of the essential story.
While he’s caring for Stephen Strange, Loki switches canes so that Blake can’t transform to Thor. He then goes looking for his cane. The Avengers make a cameo.
It’s still just an average comic.