Red Arrow's story continues as he attempts to protect a target from the villain Sportsmaster, further complicating the team's trust issues, while introducing Artemis, the new archer.
Wally West must deliver a donor heart across the country during a blizzard. Miss Martian faces her secrets during a mission to Qurac. Agendas
The overly eager, telepathic niece of Martian Manhunter hiding deep insecurities.
Season 1 introduces us to "The Team"—a covert ops unit running secret missions for the Justice League. Spanning 26 episodes, the first season is a masterclass in world-building, character development, and long-form storytelling.
The Ultimate Guide to Young Justice Season 1: Episode Breakdown and Arc Analysis
Season 1 of Young Justice set a new benchmark for Western animation. It proved that a young adult audience was eager for intricate, multi-layered comic book adaptations that respected their intelligence. The season's final cliffhanger—the "six missing hours"—laid the groundwork for a massive universe expanding across multiple seasons, comics, and video games. It remains a definitive modern classic in the DC Comics pantheon.
The peace talks succeed, but it is revealed that Lex Luthor and the foreign diplomat are both members of "The Light," meaning the entire conflict was staged. Episode 11: "Terrors" Original Air Date: September 23, 2011
The team defeats the Injustice League, but Batman and Aqualad realize the Injustice League was just a front to distract from the true mastermind group: The Light. Episode 15: "Humanity" Original Air Date: October 21, 2011
Captain Marvel (Shazam) briefly joins the Team as a supervisor during a mission to India, where genetically mutated animals are attacking locals. The Team fractures over secrets, as Aqualad admits he knew about a potential mole but kept it hidden. They must overcome their mutual distrust to stop the Brain and Monsieur Mallah. Episode 14: "Revelation"
The team successfully captures major villains, believing the threat is over. However, upon returning to the Hall of Justice, Red Arrow is revealed to be the true mole—an unwitting Cadmus clone programmed to betray the Justice League. He uses Starro-tech to mind-control the entire Justice League. Episode 26: "Auld Acquaintance" Original Air Date: April 21, 2012
The hyperactive speedster providing comic relief, scientific skepticism, and impulsive energy.
The Joker breaks out of Arkham Asylum and targets the new Superman, leading the team to confront their ineffectiveness.
Looking to prove their worth, the remaining trio investigates a fire at Cadmus Labs. Deep underground, they uncover a cloning conspiracy, cross paths with the volatile Superboy, and liberate themselves from Cadmus’s control. Impressed by their initiative, Batman, Superman, and the Justice League officially sanction them as a covert operations team. Episode 3: "Welcome to Happy Harbor"
The season is packed with character-driven stories and overarching plot development. Here are some of the most critical episodes: