Bruce tries to help a close friend named John Marlowe who has been implicated in a series of art thefts by a villain with the ability to duplicate himself. The villain happens to be a rogue clone of Marlowe who Marlowe himself created.
Tropes for this episode include:
- Clone Degeneration: Copy One's "Quantex" device allows him to create duplicates of objects and fully sapient copies of people, himself being a clone of his creator John Marlowe who went rogue. Unfortunately, each successive Everywhere Man doppelganger comes out more ill-tempered and megalomaniacal, with some even voicing a desire to use their technology to Take Over the World when the initial Everywhere Man is just content with being an art thief and kidnapper."Like a bad photocopy, each duplicate is just a little darker than the last."
- Clones Are People, Too: Each of Marlowe's clones starts as an identical copy of its original, until they gain self-awareness (and, for some reason, become increasingly worse than its original), and sometimes grow disgruntled with their creator. Copy One deals with this by basically killing his clones once they're no longer useful to him or if they start rebelling. Some of the clones are okay with this, some of them... aren't.
- Disposable Decoy Doppelgänger: The Everywhere Man can create and destroy temporary copies of himself, and hence be "everywhere". Problems arise if a copy is active for too long, as they gradually become more intelligent, self-aware, and megalomaniacal, with them eventually starting to revolt against the original for killing them off.
- Elevator Floor Announcement: Given by an E-Man clone after forcing Batman to take an elevator to the penthouse.E-Man: Penthouse level. Nefarious plots, brilliant schemes, doomed heroes. Have a nice evening!
- Evil Doppelgänger: Each time the Quantex device is used, the double is darker than the previous version.
- Foreshadowing: One of the Everywhere Men dismisses Copy One's idea of stealing art pieces and insists they should use their power for something greater, namely world domination. Copy One then recalls him for stepping out of line. Batman, seeing this happen, ends up using this to his advantage to defeat the Everywhere Men.
- Hoist by His Own Petard: Copy One's constant creation of Everywhere Men gets turned against him when Batman uses their being darker with each duplication against him, by telling them he'll recall them and make them cease to exist.
- Ink-Suit Actor: Clea looks exactly like her actress, Allison Mack.
- Replaced with Replica: Everywhere Man uses the Quantex to replicate valuable pieces of art, then steal the real pieces while leaving the replicas in their place.
- Self-Duplication: Everywhere Man uses a duplicator device to create clones of himself that can be dispelled with the push of a button. The catch is that every successive clone is more independent and less morally compromised than the last; the "prime" E-Man is actually a clone who locked up the original to use his invention for crime.
- Take Over the World: One of the Everywhere Men says it's a waste to use their power to steal art works and they should take over the world instead.
- We Are Everywhere: Everywhere Man drops the trope name at the same time as all his copies all over the building.
- You Have Outlived Your Usefulness: Copy One erases the other copies once they're no longer needed. Batman brings this up during the climax to convince the other Everywhere Men to turn on him.
