Bruce seeks revenge on Ra's Al-Ghul. Sofia Falcone steps up her fight against Penguin. Butch returns...sort of.
- And Call Him "George"!: Grundy gives Riddler a Bear Hug as a sign of their new friendship... but since Grundy's not used to being a super-strong zombie, we hear a Sickening "Crunch!" as Riddler winces and complains that he can't breathe.
- And I Must Scream: Ra's is apparently in constant agony due to the nature of his existence.
- Asshole Victim: Yes, it's terrible that Bruce gives into his anger and commits murder, breaking the one rule he set for himself and convincing him that he doesn't deserve to be a hero. But this is Ra's Al-Ghul we're talking about here. Even Gordon is willing to look the other way on this one.
- Back-Alley Doctor: Lee has apparently become one of these.
- Call-Back: Gordon's time as a prisoner in Blackgate comes up.
- Came Back Wrong: Butch Gilzean aka Cyrus Gold aka Solomon Grundy comes back from the dead with white hair, super strength, and no memory of who he was.
- Chekhov's Gun: One is primed when Ra's passes some sort of energy onto Barbara as a parting gift.
- Hulk Speak: Grundy no use proper grammar, as is tradition for the character.
- Mercy Kill: Apparently that's all Ra's wants from Bruce. He gets it.
- The Mirror Shows Your True Self: Ra's shows Bruce his true form in a puddle reflection: a rotting, undead thing.
- Molotov Cocktail: A redneck tries to kill Grundy with a Molotov cocktail, but Grundy smashes the bottle in his bare hand before his enemy can throw it. This kills the hick and sets Grundy's forearm on fire.
- My God, What Have I Done?: Bruce is horrified with himself after killing Ra's.
- Mythology Gag:
- The sequence where a resurrected Butch emerges from the swamp, encounters a camp of hobos, and takes his new name from the nursery rhyme they're singing, is straight out of his original comic book origin story.
- Guilt-ridden over taking a life, Bruce says he can no longer be the hero Gotham needs. But that doesn't mean he can't be the hero Gotham deserves.
- The Riddler and Solomon Grundy are teammates (sorta), just like they were in the Legion of Doom from 'Challenge of The Superfriends'.
- No Ontological Inertia: After being fatally stabbed, Ra's Al-Ghul's body decomposes in an instant, looking positively mummified in the end.
- Our Zombies Are Different: Both Solomon Grundy and Ra's Al-Ghul are technically undead, and distinct varieties from each other: Grundy is a Toxic Waste Zombie and Ra's is a magical revenant.
- Spotting the Thread: Gordon and Alfred are already suspicious when the "guards" are taking the long way around to get them to an area. Having been a prisoner at Blackgate, Gordon knows this is not proper procedure at all and finds it odd he doesn't recognize any of the guards. The final piece is when Gordon looks at the nametag of one guard and notes it's the exact same name as a guard he knows to be a totally different guy.
- Tastes Like Friendship: Grundy tries to convince Riddler to be his friend by offering him a hot dog from a cart he hijacked. Riddler accepts the food but doesn't partner with him until much later.
- To the Pain: Ra's provokes Bruce into killing him by threatening to destroy everyone and everything he loves if he doesn't. It works.
- Wham Shot: The Back-Alley Doctor at the underground fight club turns out to be...Leslie Thompkins.
- What the Hell, Hero?: Gordon is not happy with Bullock agreeing to sign papers of Ra's al Ghul's release to prevent an international crisis.Bullock: What do you want me to do?
Gordon: TO DO YOUR JOB!
Bullock: I AM DOING MY JOB!!
Gordon: (walks off) Right.
Bullock: (exasperated) I'm doing my job!