This is a tie in to the Casket of Winters story in Thor #350-353. Lots of fighting.
Also, Hercules returns to the team. Hercules is on the beach with girls when it starts to snow, so he rushes off to Avengers mansion. He then joins up with the group to fight off the various Norse threats, alongside Thor, Beta Ray Bill, the FF, etc.
It’s just a big fight issue, but Stern can write the hell out of anything.
There is a check-in with the Deathurge/Maelstrom story that’s kind of funny.