Captain America: Lost for decades in the frozen depths of the Arctic, Captain America returned to a nation he barely recognized, once again ready to defend her at all costs. Now leading the Ultimates, he continues to sling his shield against tyranny and oppression.

SHIELD Agent: Run by General Ross and later General Nick Fury, S.H.I.E.L.D. is a clandestine military organization dedicated to creating or controlling the most powerful super-humans in the world, including the X-Men, Spider-Man and the Ultimates.