DC x Sonic the Hedgehog: The Metal Legion #3

Plot

ENTER THE METAL LEGION! Dr. Eggman and the Legion of Doom are victorious! The Justice League, Sonic the Hedgehog, and his friends have been banished from reality! Now nothing will stand in the way of the villains' ambitions — including themselves! One betrayal leads to another as the villains descend into all-out war — with two worlds caught in the crossfire!