Originally aired February 5, 2010
Written by Geoff Johns
Directed by Glen Winter (Part 1) & Tom Welling (Part 2)
Members of the Justice League and the Justice Society join forces to take on Icicle.
Tropes present in the episode:
- Animate Inanimate Object: The Helmet of Nabu, which looks directly at Clark when he uses his X-Ray Vision to see into Kent Nelson's bowling ball bag.
- Arch-Enemy: Doctor Fate states that Lex, who was supposedly killed in Season 8, will become Clark's "ultimate opponent."
- Avengers Assemble: The Justice League and the Justice Society band together to take on Icicle. This is actually what Waller was trying to accomplish all along.
- Badass Boast: Delivered by J'onn J'onzz (whose powers are restored by Doctor Fate) to Icicle during the final battle in Watchtower:J'onn: I'm Mars' last survivor. There's a reason for that.
- Break Out the Museum Piece: The JSA last operated decades ago, so their headquarters isn't quite as hi-tech as Chloe's used to. She has an aghast moment when she sees their computer, which is extremely 80s, while Courtney gives it an affectionate pat.
- The Caretaker: Carter, to Kent Nelson.
- Carry a Big Stick: Hawkman wields a mace.
- Continuity Cameo: Pretty much every member of the JSA from the comics shows up in the painting.
- Heroic Sacrifice: Doctor Fate sacrifices his life to restore J'onn J'onzz' powers.
- Hero Killer: Icicle manages to kill Sylvester Pemberton, Sandman and Dr. Fate.
- Legacy Character: Cameron Mahkent is the son of Joar Mahkent, the original Icicle.
- Mythology Gag:
- The heroes of the Justice Society were mainly from DC's Golden Age. Doctor Fate tells Clark that he will bring in a new age of heroes, a "Silver Age".
- Hawkman and Green Arrow don't get along, much like how comic Hawkman and Green Arrow hate one another.
- J'onn's boast to Icicle was previously used by Geoff Johns in Infinite Crisis.
- Order Reborn: In the final act, Carter announces his intentions to find the other members of the Justice Society as well as their proteges.
- The Paragon: Doctor Fate tells Clark that it is his destiny to become this to the current generation of superheroes.Doctor Fate: And when you show yourself to the world, it will be a different age than ours, Clark; a silver age of heroism that will start when they look up into the sky at you with hope for tomorrow. You will help everyone embrace it.
- Villain of the Week: Cameron Mahkent AKA Icicle
