Batman interrupts a robbery by a gang equipped with weaponized cybernetic enhancements. The criminals win the fight, but not before one of them gets hit hard enough to leave a broken servomotor behind. Bruce and Terry identify the device as the work of Dr. Corso, who had provided some of the technology for the Batsuit.
When Batman tries to question Corso, the doctor surprises him with a sedative injection; he awakens to find the doctor and his equipment gone. Batman then sets a trap for the doctor, who breaks down and explains that he's helping the criminals because they're holding his wife hostage. He says that he put a secret shutdown to stop the criminals after they return her, but won't tell Batman what it is and tries to dissuade him from attempting a rescue.
- Bittersweet Ending: All of Bullwhip's allies have been detained, and there's a likely chance that Dr. Corso will make sure hes never heard from again. But now that leaves the question of how Dr. Corso will pick up the pieces of his life after learning of April's betrayal, or if he'll ever trust anyone ever again.
- Fantastic Noir: Though the villains are a gang of cybernetically augmented humans, the story features lower stakes and more moral ambiguity closer to a hardboiled pulp detective story than a superhero show, plus of a jazzy score reminiscent of Film Noir films.
- Forced into Evil: Corso is being blackmailed into helping the gang; see I Have Your Wife below.
- I Have Your Wife: Bullwhip's hold on Dr. Corso. It's a lie; she's in on the whole thing.
- A Lighter Shade of Black: Batman realizes that Dr. Corso can't be completely evil, since he passed up an easy opportunity to kill him. He then lures Corso with an fake emergency call for medical assistance; Corso takes the bait.
- Override Command: Corso put a secret self-destruct trigger in the gang's enhancements so that he could stop them once his wife was safe. He won't tell Batman what it is, but Bruce figures out enough hints for Terry to guess correctly.
- Strapped to an Operating Table: In the final scene, Bullwhip is back for another round of surgery, unaware that Dr. Corso knows the truth about him and April. The show ends with the doctor lowering a drill toward Bullwhip's point of view...
- Titled After the Song: "April Moon" (described as an "old song"—it dates from 1990, putting it about a half-century before Batman Beyond's time frame) was special to Dr. Corso and turns out to be the override password on the cybernetic implants.
- Title Drop: See Override Command.
- Tranquil Fury: Bullwhip goes to Dr. Corso to get fixed up an upgraded at the end of the episode, completely unaware that Dr. Corso knows everything. Dr. Corso stays completely calm to not show that he knows, straps Bullwhip onto the table, and the last thing we see is a POV from Bullwhip as Dr. Corso is pointing a drill right at his head.
- Villain: Exit, Stage Left: Invoked in the next-to-last scene. The rest of the gang was captured, but Bullwhip escaped. Bruce says that he'll be back...until he finds out that Bullwhip doesn't know that the doctor saw him with April. With this information, Bruce concludes that maybe he won't be back.
- What Happened to the Mouse?: After "operating" on Bullwhip one last time, one has to wonder how Dr. Corso confronted April, or if he confronted her at all.
- Whip It Good: Harold, aka Bullwhip, is armed with cybernetic whip cables that detach from his wrists.
- Woman Scorned: A male example; Dr. Corso sees that April is voluntarily cooperating with the gang and carrying on an affair with Bullwhip. He flips out, alerting the gang that they've been found.