The Clash of Heroes and the Secret Society!, Part Three is the fifty-second episode of Batman: The Brave and the Bold. And the season 2 finale.
January 28, 2011. 3-part episode.
Recaps of the first and second part, follow by origins of the Atom, Aquaman, Big Barda, Black Canary, Black Lightning, Blue Beetle, Bronze Tiger, Detective Chimp, Dr. Fate, Elongated Man, Fire, Barry Allen, Green Arrow, Hal Jordan, Hawk and Dove, Katana, Martian Manhunter, Metamorpho, Mr. Miracle, Question, Red Tornado, Superman, Vixen, Wonder Woman, and Zatanna.
The final battle begins, where Batman, Captain Marvel, Mary Marvel, Firestorm, Blue Beetle, Plastic Man, Woozy Winks, Detective Chimp, Fire, Booster Gold, B'Wana Beast, Shaggy, Scooby, the Metal Men, and the Outsiders battle Gentleman Ghost, Morgaine le Fey, and the Secret Society of Super-Villains (consisting of The Rogues (Mirror Master, the Top, Weather Wizard, Pied Piper, and Heat-Wave), Poison Ivy, Riddler, KGBeast, Black Adam, His Queen, Isis, His Brother-In-Law, Orsiris, Kite Man, Rubberneck, Count Vertigo, Sinestro, the Gas Gang, Deadshot, Catman, Dr. Double X, Mr. Freeze, Solomon Grundy, Mad Hatter, Baby-Face and his crew, Mr. Zsasz and his crew, Psycho Pirate, Animal-Vegetable-Mineral Man, the Madniks, and Two-Face) in order to rescue Fred, Daphne, Velma, Dr. Magnus, Vixen, Helena Bertinelli/Huntress, Mr. and Mrs, Bromfield, Ramona O'Brien, Baby Plaz, Shnitzel, and Hal Jordan. Later, Black Canary, Green Arrow, Zatanna, Elongated Man, Nightwing, Speedy, Aqualad, Kid Flash, Troia, Aquaman, Wonder Woman, Martian Manhunter, Superman, Red Tornado, the Flash, Hawkman, the Atom, Ice, Guy Gardner, Hawk, Dove, the Question, OMAC, and Bat-Mite (only watching) assist Batman and the others into winning the battle.