The issue sees the various heroes of the Marvel universe trying to guard Midgard ... thanks to the events of Asgardians of the Galaxy #8. In that issue, Heimdall tried to warn Annabelle Riggs ...
This is the Marvel Comics history of Storm as an Asgardian Goddess of Thunder. In the comics, Storm first channeled godly power through a different Asgardian hammer than Mjölnir, named Stormcaster.