The Unbeatable Squirrel Girl Beats Up the Marvel Universe #1

Doreen's duplicate Allene concludes that humans have done a terrible job during the time they've been dominant on earth and defeats the superheroes as her first step in a plot to give the squirrels rule. Doreen frees the heroes from the Negative Zone; now forewarned, they capture Allene. Since the Negative Zone has no sentient life, S.H.I.E.L.D. turns it over to Allene and all those squirrels who wish to follow her.