La serie narra le avventure di un gruppo di giovani supereroi adolescenti (in prevalenza sidekicks, ossia spalle come Robin, Superboy, Kid Flash, Aqualad, Miss Martian e Artemis) denominato "La Squadra" che porta a termine delle operazioni clandestine per conto della Justice League, di cui rappresenta la controparte giovanile. Gli eventi si svolgono sulla Terra-16 del nuovo multiverso DC, diverso dal precedente DCAU e da altre continuity, ed è ambientata ai giorni nostri, in un periodo in cui i supereroi sono un fenomeno recente.
Young Justice is an Emmy Award winning American animated television series created by Brandon Vietti and Greg Weisman for Cartoon Network. Despite its title, it is not a direct adaptation of Peter David, Todd Dezago and Todd Nauck's Young Justice comic series, but rather an adaptation of the entire DC Universe with a focus on young superheroes. The series follows the lives of teenaged heroes and sidekicks who are members of a fictional covert operation group called The Team. The Team is essentially a young counterpart to the famous adult team, the Justice League. The main setting is the fictional universe of Earth-16, during a time period in which superheroes are a relatively recent phenomenon. The series debuted with an hour long special on November 26, 2010 with the airing of the first two episodes, "Independence Day" and "Fireworks". Young Justice premiered on September 9, 2011 on Teletoon, in Canada. The series ended alongside fellow DC Nation show Green Lantern: The Animated Series after its second season came to a conclusion during spring 2013. Because of this, their slots will be taken by new shows Beware the Batman and Teen Titans Go!, respectively.