Justice League/Avengers: Clash of the Universes

Episode 50 of Robin & Batgirl: A New Adventure. It is the first one-hour episode.

In the Avengers HQ,Black Widow,Captain America,Iron Man,Thor,Hawkeye,Black Panther,Spider-Man,Ghost Rider,and Fantastic Four found out that their adversaries,led by Dr. Doom,made a time machine and got through another universe called DC Universe.So,they went to Dr. Doom's hideout and used his time machine to stop them from destroying the strange universe of DC.They entered the time portal and got to the DC Universe.Then,they saw  strange heroes and their sidekicks(Superman,Superboy,Supergirl,Batman,Robin,Batgirl,Wonder Woman,Wonder Girl,Flash,Geezer Flash,Kid Flash,Impulse,Green Lantern,Hal Jordan,Kyle Rayner,Kilowog,Hawkgirl,Hawkman,Martian Manhunter,Miss Martian).They helped them by defeating the minions of the villains.Later,after the battle was finished,they sent Lex Luthor,Bruno Mannheim,Bizarro,Joker,Riddler,Penguin,Giganta,Cheetah,Captain Cold,Mirror Master,Captain Boomerang,Gorilla Grodd,Sinestro,Star Sapphire,