In space, we see the core of an ancient galaxy explode. Amazingly, though, gigantic tongs grab the leftover starstuff, and an equally gigantic figure begins to mold it. In Grant Park in Chicago, Don Blake is out for a stroll, thinking about how sometimes he wishes he could set aside his godly heritage and be just a man, when he is struck in the back with a frisbee. Blake gives it back to John when he is grabbed by two men, who hustle him to a car and shove him in. Inside is Nick Fury, who tells Blake he needs his help, or more to the point, Thor's help. They arrive at the SHIELD Helicarrier where Sitwell gives a briefing about the trouble they have. Using an advanced warp driven probe, they have discovered an alien ship. As the ship passes by a star, it flared to life and was sucked in by the ship, refueling it. The ship is now headed towards Earth at several times the speed of light. Thor agrees to help and begins his journey. In Asgard, Sif arrives to find Volstagg with Balder feasting. Balder is morose after his sojourn in Hela's realm and has visibly gained weight. He has sworn to never fight again. Sif was wanting company since Thor has forsaken her for Earth, but she will not find it here. She goes to Heimdall and asks him to find her a battle to ease her emptiness, but he cannot help her either. In space, Thor has met up with the ship, and as he closes in on it, it's automated weapons open fire. Thor destroys the gun battery and rips his way through the hull. Inside, he finds a large figure encased in crystal, that suddenly breaks free. In Asgard, Loki is bored when he hears a noise. Outside, he sees warriors engaged in a forbidden Troll hunt. The Troll is hiding when it sees a beautiful woman offering to help hide it when she gets close, she grabs it and hoists it up. Lorelei has won the hunt. Loki invites her back to his castle and she agrees. Back aboard the ship, the gigantic alien tosses Thor aside and introduces himself as Beta Ray Bill. Bill believes Thor is some sort of demon that has been harassing his people and plans on killing him. As they battle back and forth, Thor has dropped Mjolnir. Thor knows he must stop them and begins trying to tear the ship apart. Skuttlebutt sets for Earth to set down for repairs while Bill attacks anew. But before Thor can do anything else, he changes back to Blake, and Bill is upon him fast. Bill forms a stasis egg around himself to survive the crash, and the unconscious form of Blake is inside as well. Nick Fury arrives at the ship's crash site just seconds after impact. Bill looks for Thor's hammer to use as a weapon but finds only a stick. he strikes a wall in frustration and is transformed into an alien version of Thor. Outside, Bill throws the hammer and destroys one of the SHIELD vehicles, and catches Mjolnir when it returns to him. Astonishingly, Bill is worthy! He is about to strike again when the skies open up, and an image of Odin appears. He mistakes Bill for Thor and takes him to Asgard. Nick Fury and SHIELD are starting to move in, when Blake crawls out of Skuttlebutt, and realizes what has happened. The alien was worthy enough to wield Mjolnir, and Blake is stuck on Earth as a mortal.