The Spook arrives in the prison cell where Batman waits, disguised as "Big Turk" Ramis, one of the villain's "escape insurance" policy-holders. Immediately, the Spook reveals that he knows that he is speaking to Batman in disguise.
Lunging for the Spook, Batman quickly subdues him, only to learn that it is the prison guard for the block, hypnotized by the Spook and wearing a two-way mini-radio taped to his mouth. Batman soon discovers that the whole thing was a diversion while the Spook rescued Big Turk.
While the Spook explains to Big Turk how he learned of Batman's ruse, the Caped Crusader figures out that the villain whisked the prisoner out of his cell by means of a trap door hidden under the drain in the floor. Batman soon discovers that it links not only to a hidden exit, but to a network of secret passages throughout the prison.
Racing to the scene where the Spook recently made his entire Batmobile disappear, Batman learns that the villain achieved it by rigging the manhole cover he appeared from under so that when Batman lifted it, the entire section of pavement the Batmobile was parked on opened up and swallowed the car.
Dashing under the opening in the street, Batman discovers that the Spook has taken over an abandoned subway spur and turned it to his own uses. Tracking the Spook down to his control room -- a switching station directly under City Hall -- he attempts to engage his quarry in hand-to-hand combat, but the Spook instead disappears in puffs of smoke, only to reappear standing on the walls and ceiling out of harm's way. And when he finally gets his hands on the fiend, he discovers that the outside of the villain's entire costume is wired to give electric shocks to anyone who touches him.
Feigning defeat, Batman declares a stalemate, then asks the Spook to show him how he walked on the walls and ceiling. Demonstrating the suction cups built into the soles of his shoes, the villain allows the shock-free interior of his cloak to be exposed. Batman then simply grabs the fiend and rips the battery off his belt.
Later, at police headquarters, Batman and Gordon are discussing the case when the Spook's fingerprints come back from the lab. They reveal him to be Val Kaliban -- a convicted murderer executed in the electric chair ten years before!