The Black Cat and her crew Boris Korpse and Bruno Grainger steal a painting from an exhibition but fails to sanction the heist with Odessa Drake and the Thieves Guild, who want their cut. Also on her trail is Sonny Ocampo, director of security for the exhibition. Felicia eludes both of them but is unexpectedly confronted by her and her own father’s mentor, the Black Fox, who has a plan which doesn’t seem to have Felicia’s interests at heart.
In a posh hotel in Miami, the Fox has arranged for the immortal monster-hunter Ulysses Bloodstone to break up his card game with Dracula, distracting the vampire long enough for him to steal all his money and make his getaway. Speeding out of town with his associates Walter Hardy and Castillo Drake, none seem to notice they are followed by a colony of bats.
The Black Fox and Black Cat plan a heist but first need to pick up a magically-powered ‘merlin’ to help them as they plan to rob… Doctor Strange! They pick up the nearly incoherent Xander, who manages to open Strange’s front door. Now jobless, Sonny is offered work by Odessa Drake. In Strange’s mansion, Felicia, Dr. Korpse, Bruno and Xander make it past all the obstacles to the trophy room, where Felicia takes the original deed to Manhattan. They lose track of Xander, who grabs his long-lost Star-Stone, which instantly transforms him into the powerful and dangerous Xander the Merciless!
Black Cat and crew are joined by Bats the ghost dog as Xander threatens to destroy everything and everybody. Felicia recalls advice once given to her by the Black Fox - when you’re about to lose, make your problem someone else’s and run. She does just that and causes the Strangelings to gang up on Xander, delaying him just enough for them to escape. Ouside Felicia hands the deed over to Black Fox, who tells her they’re going to rob the Fantastic Four next!
The Black Fox organizes a few Thieves Guild members to pull off his last caper - to steal from the vaults of the Guild itself. For that he needs a book in the Fantastic Four’s library. Black Cat is in the middle of her plan to steal it right from under the Torch’s nose when Ocampo, and then her bumbling henchmen stumble into the middle of it. Just as she grabs the book, a portal opens and Blastaar and his thugs begin to enter.
The Human Torch, along with Felicia and her team, and even some help from Sonny Ocampo, manage to force Blastaar and his thugs back into the Negative Zone. Ocampo tells Felicia how awful he thinks she is. Felicia reflects on her behavior, gives Sonny $10,000 and advises him to get away from Odessa Drake. Learning the Black Fox has been involved with the Black Cat, Odessa orders he be brought to her immediately.