Now that he's an Avenger, Bruce's life is calmer. He's managed to build his relationship with Betty, the army is no longer hunting him, and he's working with SHIELD on other gamma cases. However, he knows that as the Hulk, everything ends at some point.
Soon, he begins to have strange dreams and feels the Hulk changing, no longer just an emotionless beast, with the Emerald Goliath beginning to gain personality and self-awareness, which makes it difficult for Bruce to control him and especially his rage.
Right at the moment a gamma creature similar to the Hulk attacks General Ross, leading to suspicion about Bruce, including from Banner himself.
While investigating, with the help of Betty and Rick, Bruce discovers Samuel Stern, a scientist he worked with on the gamma bomb project, who was also affected, changing like Bruce, but in a different way. Stern, or Leader as he prefers to be called, wants to give the world the same gift he received, the gamma mutation that made him a superior being. And for that, he relies on the ex-soldier Emil Blonsk, who has become the Abomination and seeks revenge against Hulk and General Ross. This forces the two former enemies to work together to deal with these new threats that target them both, if they want to survive to face tomorrow. The question is, can they put aside their differences and points of view to work together, or will they let their differences get in the way, which will lead to the end of both of them?
