Dan Cassidy has just been hired for the latest Verner Bros production, "Blue Devil," by his friend Marla Bloom. He's tasked with designing the costume and playing the main character. Dan creates a suit with an exoskeleton, believing that the result will be even better.
While filming on the Isle of Devils, Dan and Sharon Scott, his co-star with whom he's having an affair, inadvertently release the demon Nebiros. Using his costume, Dan manages to send the demon back to its realm but becomes trapped within his own suit. As he tries to free himself from this state, seeking help from Dr. Thirteen and Madame Xanadu, he remains unaware that the breach he opened on the island hasn't closed, allowing the demon Eclipso to escape.
Post-G: Neron, Lucifer, and Merlin take control of the Underworld, disposing of Hades.
