When Graviton takes over the research facility and forbids all communications with the outside world, a fellow scientist sends a distress signal to the superhero team the Avengers. A furious Graviton then lifts the facility several thousands of feet into the sky and threatens to kill the scientist. The Avengers then arrive and attack but are all defeated when trapped in a gravity field. Graviton then proceeds to bring the facility to New York, and demands the U.N. to hand over world power or he will destroy the world's cities. At Avengers Mansion a returning Black Panther learns of their plight and joins with the thunder god Thor, having also been on leave from the team, and the two head to the facility. As Thor battles Graviton with Iron Man's help, the Panther frees the captive Avengers, but Graviton defeats them again until he is tricked into thinking a fellow scientist he cares for has committed suicide. Graviton then panics and causes the entire facility to collapse on him, forming a giant stone sphere that is dropped into a river by the Avengers.