Here is the episode list for Young Justice Season 1 (2010–2012), also known as Young Justice: Season 1 or Young Justice: Invasion prelude. The season consists of 26 episodes.
Here is the chronological list of episodes, originally aired on Cartoon Network, with summaries and key takeaways.
Paranoia sets in. Batman sends the Team on a high-stakes mission involving the villainous The Brain and his animal army. The Team struggles with internal trust, suspecting a mole among them (Artemis or Superboy are primary suspects due to their origins).
Simultaneously, a new hero joins the fold: Zatanna, the daughter of the magician Zatara. The Team also discovers that the league of villains is utilizing advanced technology that shouldn't exist yet, hinting at a greater cosmic threat.
The mid-season climax ("Coldhearted") involves a plot to use a "Ice Fortress" to freeze North America. The Team stops it, but the victory is bittersweet as they realize they are merely pawns in a larger game.
Episodes: "Independence Day" & "Fireworks" young justice season 1 episodes
On July 4th, the sidekicks (Robin, Kid Flash, Aqualad, and Speedy/Roy Harper) are finally granted access to the Hall of Justice, the Justice League's public headquarters. However, they quickly discover it is a façade; the real headquarters is the Watchtower in space. Feeling betrayed, Speedy storms off, quitting his partnership with Green Arrow.
Suddenly, the villains Blockbuster, Icicle Jr., and Atomic Skull break out of a nearby facility to distract the League. The three remaining sidekicks disobey orders and investigate. They discover a hidden cloning project at Cadmus Labs. They find Superboy, a clone created from Superman’s DNA.
Together, the three sidekicks and Superboy defeat Blockbuster and free Superboy. The Justice League arrives to bail them out, but the teens stand their ground. Impressed by their initiative but concerned for their safety, Batman forms a new, covert team: The Team. They are based in Mount Justice (the League’s old cave HQ) and are meant to handle covert ops the Justice League cannot.
New Members: Miss Martian (M'gann M'orzz) and Artemis (Artemis Crock) join the team shortly after, rounding out the core roster.
| Episode | Title | Original Air Date | |---------|-------|-------------------| | 1 | "Independence Day" | November 26, 2010 | | 2 | "Fireworks" (sometimes listed as part 2 of "Independence Day") | November 26, 2010 | | 3 | "Welcome to Happy Harbor" | January 21, 2011 | | 4 | "Drop-Zone" | January 28, 2011 | | 5 | "Schooled" | February 4, 2011 | | 6 | "Infiltrator" | February 11, 2011 | | 7 | "Denial" | February 18, 2011 | | 8 | "Downtime" | March 4, 2011 | | 9 | "Bereft" | March 11, 2011 | | 10 | "Targets" | March 18, 2011 | | 11 | "Terrors" | April 8, 2011 | | 12 | "Homefront" | April 15, 2011 | | 13 | "Alpha Male" | April 22, 2011 | | 14 | "Revelation" | April 29, 2011 | | 15 | "Humanity" | September 16, 2011 | | 16 | "Failsafe" | September 23, 2011 | | 17 | "Disordered" | September 30, 2011 | | 18 | "Secrets" | October 7, 2011 | | 19 | "Misplaced" | October 14, 2011 | | 20 | "Coldhearted" | October 21, 2011 | | 21 | "Image" | November 4, 2011 | | 22 | "Agendas" | November 11, 2011 | | 23 | "Insecurity" | November 18, 2011 | | 24 | "Performance" | December 2, 2011 | | 25 | "Usual Suspects" | December 9, 2011 | | 26 | "Auld Acquaintance" | December 16, 2011 | Here is the episode list for Young Justice
Note: Episodes 1 and 2 ("Independence Day" / "Fireworks") are often combined as a one-hour premiere. Season 1 is sometimes subtitled "Young Justice: Invasion" on streaming platforms, but true Invasion is Season 2.
The first season of Young Justice introduces a team of teenage sidekicks who operate as a covert-ops unit for the Justice League. The season focuses on their growth from "junior partners" to an independent team, while they unknowingly battle a secret syndicate of supervillains known as The Light. Core Team and Origins
The season begins with Robin, Kid Flash, and Aqualad breaking away from their mentors to investigate a fire at Project Cadmus. There, they discover and liberate
, a clone of Superman. Following this unsanctioned mission, the Justice League officially recognizes them as "The Team," soon joined by Miss Martian and later Artemis. Key Episode Arcs
Starting the series-please recommend an abridged episode guide Young Justice Season 1 Episodes | Episode |
Episodes: Coldhearted, Image, Agendas, Insecurity, Performance, Usual Suspects.
The paranoia reaches a fever pitch. The League thinks there is a mole. The Team thinks there is a mole. We suspect Artemis (the spy's daughter), then Superboy (the Cadmus clone), then Miss Martian (the White Martian secret).
When Young Justice premiered in November 2010, it was easy to dismiss it as just another Saturday morning cartoon for kids. However, within the first few minutes of the pilot episode, audiences quickly realized this was something different. This was a sophisticated, serialized spy drama disguised as a teen superhero show. Written by Greg Weisman (Gargoyles, The Spectacular Spider-Man) and Brandon Vietti, Young Justice Season 1 is widely regarded as one of the best single seasons of animated television ever produced.
Over the course of its 26-episode run (including a 2-part pilot), Season 1 introduced us to a secret world of covert ops, genetic manipulation, and the heavy burden of legacy. For fans revisiting the series or new viewers looking for a viewing guide, here is your ultimate breakdown of every Young Justice Season 1 episode in order.