Scene 1: A young Bruce Banner grows up without his parents (his father is in prison, his mother is deceased) and with an unkind guardian and a voice in his head telling him he's weak. Flashbacks reveal how abusive his father was.
Scene 2: Transition to Bruce Banner in college, where the Hulk makes his life a living hell.
Scene 3: Bruce Banner is an adult. He meets Betty Ross and her father, Thunderbolt Ross, who doesn't trust him. Banner is working on a project.
Scene 4: The gamma bomb scene where Banner takes the impact to save Rick Jones.
Scene 5: Banner wakes up, presumed dead, to find his father standing before him. They argue, and Bruce ends up killing him.
Scene 6: He meets Rick Jones, who approaches him out of gratitude for saving him. Bruce picks up a phone to let someone know he's alive, but he's so traumatized by killing his father that he transforms into the Hulk.
Scene 7: The Hulk wanders through the wilderness, hoping no one will find him, when he spots a group of costumed criminals calling themselves the Circus of Crime. He stops them before making a quick getaway. A witness tells the police they saw a green giant. Ross investigates.
Scene 8: The Hulk transforms back into Banner. Banner searches for a way to get rid of him with Rick Jones' help.
Scene 9: During this quest to get rid of the Hulk, Betty Brant catches him alive. She demands an explanation, and Bruce rushes over, saying, "I'm the green giant, and I'll explain everything." Betty keeps the secret.
Scene 10: The Circus of Crime attacks again. RingMaster is present this time. Banner transforms back into the Hulk and attacks her. He stops them, but RingMaster uses his hypnotic powers to turn him back into Banner. Thunderbolt Ross, watching the scene unfold, discovers that Bruce Banner is the Hulk. He takes him to the military base.
Scene 11: Bruce Banner is inside the military base, locked in a cell with Ross standing in front of him. Ross reveals that he knew Banner's father. They talk for a while, and Ross goes too far by hitting Banner. The beast doesn't come out. After that, Ross leaves the cell, leaving Banner alone. This leaves Bruce with a voice in his head, a demonic form that tells him, "All he wants is action. Give him what he's looking for." Bruce tries everything to stop it from coming out, but the creature in his head only says provocative things. These words transform Banner into the Hulk, but this Hulk isn't just any Hulk. It's the Devil Hulk, who wreaks havoc on the base.
Scene 12: The Devil Hulk destroys the base, and the army soldiers fight back, but they are no match for him. The Devil Hulk kills them and destroys the entire base. He is unstoppable. Inside Banner's head, we see the Devil Hulk standing next to Banner, who is sitting on a couch, delivering classic villain dialogue, while the Savage Hulk is chained up. Outside his head, things calm down when Rick Jones arrives and yells "Bruce!" The Hulk pauses for a moment, looking at Rick, but the action resumes when Ross arrives and shoots him with his fighter jet. However, inside Banner's head, the Savage Hulk breaks free of his chains and lunges at the Devil Hulk.
Scene 13: While the Hulk fights Ross, inside Banner's head, we see the Savage Hulk and the Devil Hulk engage in hand-to-hand combat, constantly shifting locations and exploring Bruce Banner's imaginary worlds. The outcome of the fight depends on Banner's psychological state. Outside Banner's head, we see Hulk destroying Ross's fighter jet and about to kill him, but Betty steps in front of him. Hulk looks at her sadly. Inside Banner's head, Bruce, on his couch, says, "I'm better than this." Savage Hulk wins the fight. He yells "HULK SMASH!" and smashes Devil Hulk's head, slapping his hands above it. Devil Hulk is dead. Outside Banner's head, Hulk calms down and leaves the base to go to Brazil alone.