With the help of an ancient Kryptonian power, Lex Luthor unites the world's Super-Villains to capture all of Earth's Super Heroes, until ... only the DC Super Hero Girls are left to stop the Legion of Doom. Our heroes must cross dimensions to rescue their fellow Super Heroes from the Phantom Zone, but a fortuitous wrong turn leads them to Titans Tower - where they find much-needed allies in the Teen Titans. The young Super Heroes discover their combined strength - and usual comic relief - are essential to save the day in this blockbuster event!From the DC Vault:Teen Titans Go!: Season 2: Operation Tin ManTeen Titans Go!: Season 4: Titan Saving TimeDC Super Hero Girls: Season 2: #SmallVictories