Watch full Justice League vs. Teen Titans online full HD. Cartoon movies Justice League vs. Teen Titans online for free in HD. The Justice League battle the Legion of Doom (consisting of Lex Luthor, Solomon Grundy, Cheetah, Weather Wizard, and Toymaster). After the Legion is defeated and captured, Weather Wizard runs away, but is possessed by a shadow-like creature, which is subsequently revealed to be the demon Trigon. Robin disobeys his father's orders to get civilians to safety, thinking he can help the Justice League fight the possessed Wizard. Robin sets the Batwing to crash into Weather Wizard and explode, forcing Trigon's shade to leave his host. Upset that there's no answer to this occurrence and in order for his son to learn teamwork, Batman sends Robin to join the Teen Titans. Meanwhile, Trigon's shade possesses Superman, plaguing him with visions of demonic shadows. Robin meets the Titans' leader Starfire and members Raven, Beast Boy, and Blue Beetle, but his lack of respect for the others causes friction. Blue Beetle and Robin fight until Blue Beetle's suit instinctively uses an energy blast to severely burn Robin. Raven heals him, but during the process her empathic powers link their minds, tapping into each other's memories. Later, Robin thanks Raven for saving him, but confronts her about an entity he saw in her mind. With Raven unwilling to answer, Damian tries to search up Raven's background, but no information is kept about her in the Titans' files. When he confronts Starfire about this, she replies the team isn't just for fighting crime, but also a surrogate family, as they are all lost souls in a world with no place for them. Superman finds and brutally beats down Atomic Skull, alerting Wonder Woman and Batman. The latter uses kryptonite to drive Superman back, revealing his possession before Superman flies off. Cyborg tries to locate Superman and a "female with supernatural powers", whom Trigon is searching for. He and Batman analyse footage of both a transformed Superman and the shadow demon that possessed Weather Wizard, concluding that if the host is damaged or overwhelmed, they will be freed from it. In the meantime, in order to loosen Damian up, Starfire takes the group to a carnival, where Raven encounters demon emissaries and Trigon, in a spirit form, who wants to find her so they can be together. With the help of the other Titans, Raven resists and fights the emissaries until they cannot maintain their presence on the Earthly plane and dissipate.