In the wake of the Kree-Skrull war, Iron Man assembles a group of humanity's greatest heroes to create a proactive task force, designed to safeguard the world against various outside threats. Black Panther opts out from the start, and Namor leaves years later when the group decides to launch the Hulk into space (see "Planet Hulk"). The rest of the group is divided when the Superhuman Registration Act arrives.
