Mr. Freeze is kidnapped from Arkham by Grant Walker, an aging billionaire, who convinces Freeze to help him in exchange for curing Nora.
- Always Save the Girl: Grant Walker wants to use his technology to freeze the planet, killing everyone except those on his island. In exchange for his cooperation, Walker offers to revive Freeze's wife. Freeze is willing to go along with the plan until Batman points out that Nora would be waking up to a cold, dead world, whereupon Freeze releases Batman and Robin and helps them defeat Walker.
- And I Must Scream: Grant Walker pays a heavy price for seeking immortality.
- Corrupt Corporate Executive: "Deep Freeze" features Walt Disney's... eccentricities... taken to their fearful logical conclusions.
- The Dragon: Freeze briefly becomes one to Grant Walker.
- Expy: Grant Walker could be described as "Evil Walt Disney".
- An Ice Person:
- Mr. Freeze (naturally)
- Two if you count Grant Walker after Mr. Freeze recreate the accident that created his condition.
- Knight Templar: Grant Walker. He plans to make a crime-free utopia and freeze Gotham thinking it's too corrupt to survive. Granted, he may have a point there.
- Meta Casting: William Sanderson playing Karl Rossum, a near-Expy of J.F. Sebastian.
- Mr. Alt Disney: Grant Walker. A pioneer on animatronics and amusement parks owner, his design of an underwater utopia with no crime is loosely based on the original concept for Epcot Center. He also wants to be frozen like Mr. Freeze, a clear gag on the urban legend that Walt Disney is in cryogenic storage.
- An Offer You Can't Refuse: Grant Walker pulls on Mr. Freeze when he initially refuses to help:
Mr. Freeze: Old and infirm as you are, I'd trade a thousand of my frozen years for your worst day.
Grant Walker: Actually, I had another kind of swap in mind. (Promptly reveals Mrs. Fries who, until then, was thought to be deceased)
- OOC Is Serious Business: This was how Batman knew Freeze wasn't behind his breakout of Arkham:
Batman: (watching a video of Freeze's breakout) Look at the expression of fear on his face. That's not easy to fake, especially for a man claiming to be dead to emotions. Freeze was taken against his will.
- Pre-Mortem One-Liner: Done by Mr. Freeze to Grant Walker before freezing him in a block of ice:
Mr. Freeze: You may live forever, Grant Walker, but your mad dream dies now.
- Sean Connery Is About to Shoot You: Mr. Freeze fires his freeze gun directly at you. In the commentary, the directors are surprised they got away with it — they wouldn't have been able to with a regular gun, in case some kid decided to try it.
- Shout-Out: The robots in the opening are based on Castle in the Sky.
- Silence, You Fool!: Mr. Freeze say this twice to Batman.
- Utopia Justifies the Means / Despotism Justifies the Means: A variation with Grant Walker and his motives:
Walker: My world will have no crime, violence, or pain.
Robin: You can add free will to that list, too!
Walker: A small price to pay for order.
Batman: Your order. For your select few!
Walker: Excuse me, but I fail to see the problem with that.
- Who Wants to Live Forever?: "Deep Freeze" states that, even if he's not immortal, Freeze's condition slows down his aging process and he can likely live for thousands of years. And he wants none of it.
- You're Insane!: Mr. Freeze has this response to Grant Walker's plan to become immortal like him by becoming An Ice Person. When a supervillain (an ice-obsessed villain, at that) is the one doubting your sanity, you know you have problems.