Updated Trailer: JUSTICE LEAGUE The New Frontier takes viewers on an action-packed adventure, exploring the origins of the Justice League. DC Comics legends Superman, Batman and Wonder Woman are all featured in the film as well as Green Lantern, Martian Manhunter and The Flash – as they band together to form the legendary super team. Strangers at first, these very different heroes must overcome fear and suspicion to forge an alliance against a monster so formidable, even the mighty Superman cannot stop it alone. If they fail, the entire planet will be “cleansed” of humanity.