In his quest to rid the world from Gamma spawned monsters, Doc Green (the Incredible Hulk's current incarnation) visits Hulkling. The teen explains Doc that his powers aren't from Gamma radiation but from his shape-shifting abilities. Doc Green buys into that and leaves him alone in search for his very own son, Skaar.
Skaar is living in the Savage Land because it reminds him of his home planet, Sakaar. Skaar resists and fights Doc Green for a while, but the later finally applies his serum via a special syringe, and Skaar turns into his smaller young-adult self.
Believing Skaar would no longer survive in the Savage Land, Doc Green takes his Gamma-de-powered son (who still holds the Old Power inherited from his mother Caiera though) to Paris, a place Skaar seems to get used to very quickly.
Back in his Beehive headquarters, Doc Green's arrogant behavior upsets his group of scientists. Doc Green retrieves to his room, and while doing yoga, he falls to sleep. A transformation into Bruce Banner follows, but Doc Green fights it back, overcoming it.
Meanwhile, Rick Jones visits Betty Ross at the new lair of S.H.I.E.L.D. to let her know Doc Green is coming for her. This makes her mad as she turns into the Red She-Hulk.