I don’t always include annuals here because mostly they stink, but this one involves MODOK. Iron Man is hunting him down, and enlists the Champions to help him. They find him and kill him. This is after his last appearance, in Iron Man’s War Against Supervillains, where MODOK was killed by Yellow Claw.
MODOK never really dies.
Creators: Bill Mantlo and George Tuska
For the complete history of the MU, year by year, go here.