"The Sentinels Hunt Again!"
Blob, Unus and Lorelei call in on Champions tower block uninvited, and they've brought other unwelcome guests in their wake. The Brotherhood of Evil Mutants claim they're on the run and in need of the Champions' help.
Mutant-seeking Sentinels attack Homo Sapiens, Homo Superior and Demi-God alike. When the rest of the team joins the fray, it soon becomes apparent that the Evil Mutants aren't really the ones in peril.
Note: Final issue. Letters page announcement states that the Champions' fate would be resolved in a future Avengers issue, but the denouement eventually comes about in Spectacular Spider-Man (1976) #17 and 18.