Annihilus, Blastaar, and Super-Adaptoid team up against Thing and The Avengers.
There’s also another instance of the Thing’s ongoing poker game. Iron Man thinks Beast cheats, so he talks to him like an old dad. “Hank McCoy! You ruined this game on purpose!”
Creators: Tom DeFalco and Alan Kupperberg
For the complete history of the MU, year by year, go here.
And see my Ratings of Runs on comics here.