The Powerpuff Girls have made a name for themselves since arriving to Megaville. They're just as well-known as they were in Townsville. They've made many wonderful new allies and friends as well as many new and powerful enemies, most notable that of Black Eden and the Darkstar Council. But now this battle between good and evil will shift as a boy named Jake Phoenix, an old friend of Dexter's, comes to town. Although he is haunted by a tragic and dark past, he seems like a nice guy.
He's charming, kind, funny, intelligent, and not bad on the eyes either. When he reunites with his old buddy Dexter and is introduced to the Powerpuffs, the girls instantly fawn over him, Buttercup mostly. He takes notice of this, but is not really looking for a relationship, he does however befriends them and smiles whenever he see them. But behind that smile is a sinister secret. Demonic if you will. A secret that not many know apposed to Dexter.
Jake Phoenix, the happy and cool human, has the soul of a very powerful demon from Hell named Koganok. After making a deal with Lucifer himself at the young age of 9, he traded his pure and innocent soul for a vile and evil one to save his mother's life from a deathly illness. After Koganok painfully forces its way into Jake, his mother is cured, unfortunately three days later she is killed in a hit-and-run and poor Jake had to live with his abusive and alcoholic father. After a cruel trick his father did to Jake concerning his mother, Jake used his demon power to nearly beat his father to death and set the school he went to on fire. He then ran away, hoping to avoid any humans whatsoever.
He stumbled upon an old cemetery where he met the care taker, an old man named Johnny Blaze, also known as the legendary Ghost Rider. Feeling sorry for the young boy, Johnny took him in and raised him like his son. He even trained Jake in controlling most of his powers. One year later, Johnny was attacked by his nemesis, Blackheart while Jake was away gathering food. Although Johnny finally defeated Blackheart once and for all, he was mortally wounded in the process. When Jake found Blaze on the ground dying, Johnny made him swear to always protect the innocent and always be in control of the demon inside of him. After Jake swears this, Johnny explains that he always saw Jake as his son and that he will always be with him, perhaps not in person, but always in spirit. With his last breath, Johnny gives Jake a small magic container that could literally capture and trap evil souls. Johnny died in Jake's arms.
After a few months of traveling, he collapsed in front of the house of Dexter, Dee-Dee, and their parents. They treat him like their own and Jake befriends both Dexter and Dee-Dee, becoming like another sibling to them. Dexter's folks locates Jake's aunt Helen and she takes him in. After some years living in Alabama, Helen and Jake move to Megaville and Jake reunites with his old friend.
Meanwhile, Dr. X watches him from afar and thinks of recruiting Jake into Black Eden, for he knows how powerful Jake is. Will Jake work for Dr. X? Or will the Powerpuff Girls and Dexter convince him otherwise?