Superman and Professor Hamilton start building a new Phantom Zone projector to balance the odds. However Jax-Ur and Mala manage to send Superman into the Phantom Zone, and then destroy the Projector. As their decimating attacks begin, it's up to Lois and Professor Hamilton to rescue the Man of Steel in time.
Superman discovers a teenage girl in stasis while exploring the remains of his home world Krypton. She is the last survivor of Argos, a sister planet of Krypton whose civilization was destroyed when Krypton exploded. On returning to Earth she discovers that she has superpowers like superman and wanting to prove herself she goes to Metropolis to take on Granny Goodness and Intergang.
Embittered by Superman's heroic successes and soaring popularity, Lex Luthor forms a dangerous alliance with the powerful computer/villain Brainiac. Using advanced weaponry and a special strain of Kryptonite harvested from the far reaches of outer space, Luthor specifically redesigns Brainiac to defeat the Man of Steel. But when Brainiac betrays Luthor and reveals its sinister plans for world domination, Superman must brave the mysterious Phantom Zone to find the strength to survive this deadly showdown.
When LexCorp accidentally unearths the intergalactic serial killer Doomsday, Superman battles the creature head on in the fight of his life...literally. The world collectively mourns their fallen hero; humanity realizes it will never feel truly safe again. Superman's enemies rejoice - all but Lex Luthor, who grieves the loss in his own demented manner, setting off a chilling chain of events that even he couldn't have forseen. Inspired by the bestselling graphic novel of all time, DC Comics' The Death of Superman, this feature-length animated movie boasts exciting action sequences that rivals anything you've ever seen starring the Man of Steel!