Superboy meets Saturn Girl, Cosmic Boy, and Lightning Lad when Brainiac 5 and the Legion of Super-Heroes travels back in time from the thirty-first century.
Revisits the early years of the first of the superheroes as young Clark learns of his alien origins and how to control his powers, when he first encounters Lex Luthor, and starts work at the Daily Planet in an embittered Metropolis.
As Zod's would-be assassin flees to Earth, it's up to Krypton's new commander, Superman, and Supergirl to track down the gunman and bring him to justice.
Young Clark Kent struggles with aspects of humanity on his quest to become the world's greatest super hero, but the Man of Steel faces a bigger challenge in the form of the Parasite, whose hunger is aimed at destroying the last son of Krypton.
Superman flies to Pluto with a rescue vehicle to save stranded astronauts, and when Kanjar Ro attacks, the Man of Steel finds that he is weakened by his travel at such a great distance from the Sun and may not be able to defeat the alien invader.