After being thrown into a portal by Dark Surfer, a powerless Iron Man finds himself stranded on a world of monsters. There he meets Man-Thing and Werewolf by Night and battle Dracula and a gang of mummies led by N'Kantu, the Living Mummy. Later, it is revealed that Werewolf’s girlfriend Ellen was turned into a vampire prior to their arrival. As Iron Man tries to figure out how to leave to battle Dark Surfer, the trio of monsters declare they will form the “Supernatural Hero Squad” to save innocents on their world.
After being thrown into a portal by Dark Surfer, Falcon and H.E.R.B.I.E. find themselves in an alternate reality where Scarlet Witch is an evil emperor who rules the world. With help from an elderly Magneto and a strong Reptil, Falcon and H.E.R.B.I.E. try to convince Scarlet Witch that she is good and let the world be in peace.
Enchantress places a love spell on Odin in an attempt to become queen of Asgard, but a forgotten rule forces him from the throne and makes his son Thor king instead, which both she and Loki try to take advantage of. Meanwhile, Magneto and Quicksilver discover Wanda joining with the Super Hero Squad and hitch a ride to try and take her back from them.
With Galactus attempting to eat the Skrull Homeworld and the Silver Surfer nowhere to be found. The Super Hero Squad must hold off the devourer while finding their ally (who is slowly being corrupted by the Infinity Sword) who turns out to have delayed Ronan the Accuser from coming to the Skrull Homeworld's aid.