Robin is sent to work with the Teen Titans after his volatile behavior botches up a Justice League mission. The Titans must then step up to face Trigon after he possesses the League and threatens to conquer the world.
After battling a batch of super villains (including an armored Lex Luthor and Weather Wizard), the Justice League (that’s Superman, Wonder Woman, The Flash, Cyborg, and Robin) encounters a new foe in the form of a ghostly virus-type infection that takes over Superman’s body and mind. While Superman crosses into another dimension, Robin is spending some time with the Teen Titans (against his will) as penance for his performance in his latest battle with the Justice League. The Teen Titans (that’s Raven, Beast Boy, Starfire, Blue Beetle, and even Nightwing) have been training nonstop until they take a night out to visit a carnival, and that’s when Raven’s long-lost father Trigon (he’s basically Satan himself) reveals himself to be the virus that is taking over the Justice League one member at a time. Raven – a half demon child with strong powers – opens a dimensional rift to hell that the Teen Titans can go into to fight the possessed Justice League and ultimately her father, but Robin discovers that his own father – Ra’s al Ghul – is the master of Trigon in hell, and he’ll have to duel his own father to help the Teen Titans and the Justice League to conquer evil.
One of the stranger entries in Warner’s DC Universe Original Movies, Justice League vs Teen Titans is virtually nonstop action, with nearly no exposition or sidebars of fluff to pad out the time. It begins with a big battle and ends about a minute and a half after the last battle, with lots of battles in between, but it should be noted that the final battle takes place in hell. In hell, guys. I’ll be the first person to say that I’m not well versed in Teen Titan source materials, so if this storyline exists in comic book form then color me surprised. I’m not sure how well it translates to feature film form, but aside from the technically sound and streamlined animation, voice work, and scoring (by Frederik Wiedmann), the film seems a little off the DC universe reservation in comparison to most of the films I’ve seen in this series. It’s short at 78 minutes (all of these movies are really short), and it moves incredibly fast, but it’s an odd one. Directed by Sam Liu, who also did Justice League: Gods and Monsters.