This series continues from the events of The Ultimates. Following the Chitauri attack, the team is divided in their loyalties and threatened from within my forces they can't imagine. After attempting to execute the Banner, they question whether Thor's too insane to let run free. Yet when an assassin strikes their family from within, the team is broken apart and replaced with a suspicious breed of heroes calling themselves the Liberators.
This series includes the introduction of Quicksilver and Scarlet Witch to the team and concludes the mystery surrounding Thor's claims of supernatural divinity.
The Ultimates 2: Ultimate Collection
Ultimates 2 #1-13