The cold open: Batman and the Metal Men fight Kanjar Ro.
The main story: While chasing a group of space thieves, Batman crash-lands on an alien planet. Meeting that planet's local hero, another Batman, he finds that exposure to its atmosphere grants him powers beyond those of mortal Zur-En-Arrhians, and starts a new battle for truth, justice and the Zur-En-Arrh way!
- Actor Allusion: The main episode's storyline features three DCAU actors (Dana Delany, Clancy Brown, and Kevin Conroy) as the voices of Vilsi Vaylar, Rothul, and Batman of Zurr-En-Arrh respectively.
- Awesomeness by Analysis: Rothul is able to figure out how Batman's newly acquired powers work and how to shut them down simply by working out which planet he's likely to come from, and from there the chemical compositions needed.
- Berserk Button: Kanjar Ro is not exactly known for his patience and his short temper towards Doc Magnus for asking about Signus 7 having any moons shows.
- Cardboard Prison: The minute Rothul gets bored of prison, he summons a giant robot to break him out. It does so effortlessly.
- Damsel in Distress: Vilsi gets grabbed by Rothul's robots. Judging by his comment earlier on, this is a common occurrence of her Going for the Big Scoop.Rothul: Ah, Miss Vaylar. Always in the wrong place at the right time.
- Expy: Zurr-En-Arrh is full of them. Tiano, the civilian identity of its Batman is the Clark Kent of Zurr-En-Arrh's version of The Daily Planet: The Solar Cycle Globe. His co-worker Vilsi Vaylar is his Lois Lane, albeit with a name and appearance similar to Vicki Vale, his butler Alpha Red is a robot version of Alfred Pennyworth, Chancellor Gorzon is its Commissioner Gordon, and Xel Rothul is the planet's Lex Luthor (in fact his name is an Sdrawkcab Eman of "Lex Luthor"). Even the mugger who appears when the two Batman first meet is its version of Joe Chill right to the point that it was mugging a family of a mom, dad, and a young boy in an alley who asks for the mom's "shoulder ring" (instead of the iconic pearl necklace Martha Wayne wore) and was about to make the young boy an orphan until our Batman showed up to stop him. All this taking place in a city called "Gothtropolis".
- Field Power Effect: Much like Kryptonians under a yellow sun, the atmosphere of Zurr-En-Arrh causes humans from Earth to gain Superman-like powers. It unfortunately has a similar effect on quartz making it poisonous to earthlings.
- Kryptonite Factor: Quartz, a harmless rock on Earth, becomes pure poison to humans in Zur-En-Arrh's atmosphere, shutting down any powers they might have and in large doses causing debilitating pain.
- Large Ham: Compared to his usual Luthor voice, Clancy Brown puts a lot of emotion into his portrayal of Rothul.
- Mythology Gag:
- The criminals Bats and Green Arrow are chasing have stolen the Emerald Eye of Ekron, power-source of the Legion of Super-Heroes enemy the Emerald Empress.
- "Look, up in the sky! It's a zeta-bird! It's an air-car! No, it's Batman!"
- Negative Space Wedgie: What transports Batman to Zur-En-Arrh, a deflected shot mixing with the energies of the Bat-Ship.
- Power High: Batman lets the powers he's experiencing go to his head and he gets careless.
- Shout-Out: Green Arrow magically flying around is a reference to Peter Pan.
- Unwanted Assistance: At the end of the cold open, Batman's reaction makes it clear he'd rather not go undercover with Doc Magnus again.
- We Are Not Going Through That Again: At the end of the episode, Green Arrow arrives on Zur-En-Arrh and discovers he has superpowers. The two Batmen exchange a look and gas him with quartz before he can do any harm.
