Teenage superheroes strive to prove themselves as members of the Justice League.
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see all options Availability data: JustWatch
- Seasons
- 4
- Episodes aired
- 98
- Latest aired
- S04E26
- Total runtime
- 1d 13h
Timeline when each season aired
- Season 1 November 2010 – April 2012 26 episodes
- Season 2 April 2012 – March 2013 20 episodes
- the show was away for 5 years and 9 months
- Season 3 January 2019 – August 2019 26 episodes
- the show was away for 2 years and 1 month
- Season 4 October 2021 – June 2022 26 episodes
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S01E01 Independence Day (1)
November 26 · 22min find the promo
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Robin, Aqualad, and Kid Flash break into Cadmus and find that it is being run by Genomorphs.
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S01E02 Fireworks (2)
November 26 · 22min find the promo
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The sidekicks find a clone of Superman known as Superboy. They free him from Cadmus' control, while battling Blockbuster.
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S01E03 Welcome to Happy Harbor
January 21 · 22min find the promo
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After Speedy declines to join the new team, Robin, Aqualad and Kid Flash fear Young Justice is just a big joke…while new member Miss Martian fears there's no room for her to be part of it. So when the four heroes and Superboy come up against Mister Twister, it looks like all their fears have just been realized…
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S01E04 Drop-Zone
January 28 · 23min find the promo
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Young Justice goes on its first official mission under Batman, while trying to determine which of them will lead the team.
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S01E05 Schooled
February 4 · 22min find the promo
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Superboy's anger over his non-relationship with Superman is getting out of control. He refuses to train with Black Canary, and when the team faces an opponent that even the Justice League had trouble defeating, the Boy of Steel goes rogue.
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S01E06 Infiltrator
February 11 · 22min find the promo
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Green Arrow's niece, Artemis, joins Young Justice and must save a bright young scientist from the League of Shadows.
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S01E07 Denial
February 18 · 22min find the promo
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When the team investigates the disappearance of Kent Nelson (formerly Doctor Fate), the scientific-minded Wally West is forced to confront his disbelief in magic while battling Abra Kadabra and Klarion the Witch Boy, for the ultra-powerful Helmet of Fate.
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S01E08 Downtime
March 4 · 22min find the promo
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After a disastrous mission with the team, Aqualad returns to Atlantis to choose between a life on the surface world or one beneath the waves with the Aquagirl of his dreams. But other forces at play may make Aqualad's decision for him.
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S01E09 Bereft
March 11 · 22min find the promo
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Young Justice discovers that they have forgotten the last six months of their lives, including each other and a final fateful mission in Bialya. The team turns to Miss Martian to recover their memories, before it is too late for Superboy.
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S01E10 Targets
September 16 · 22min find the promo
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Red Arrow is on his own against the world's most dangerous assassins in preventing the League of Shadows from starting a war, until he is forced to make an unlikely alliance with someone even more dangerous. Aqualad fails to convince Red Arrow to ask the team for help.
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S01E11 Terrors
September 23 · 23min find the promo
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Superboy and Miss Martian go undercover inside Belle Reve Penitentiary.
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S01E12 Homefront
September 30 · 22min find the promo
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When Mount Justice itself is attacked, can Artemis and Robin (the two teens without super-powers) save the Team (or even themselves) from the unknown invaders?
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S01E13 Alpha Male
October 7 · 22min find the promo
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Already exhausted and rattled after a home turf invasion of The Cave, the team learns that Aqualad - their friend and leader - withheld vital information that put them all at risk. When Batman sends the Team and new "den-mother" Captain Marvel to India to investigate bizarre reports of armed animals attacking human beings, can Aqualad pull his fractured team together?
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S01E14 Revelation
October 14 · 22min find the promo
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When Plant Creatures attack major cities around the world, the team is eager to join the fight alongside the Justice League. Instead, Batman assigns them a still more dangerous task - taking out the plants' masters: a secret society of super- villains: the Injustice League!
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S01E15 Humanity
October 21 · 23min find the promo
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The team is on the hunt for Red Tornado, determined to find out once and for all whether the robot was the mole - even if it means kidnapping new friend Zatanna and dragging her along on their quest!
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S01E16 Failsafe
November 4 · 22min find the promo
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When the Justice League is defeated during an alien invasion, the Team has to step up and fill their mentors shoes.
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S01E17 Disordered
November 11 · 23min find the promo
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Superboy's "Sphere" goes through a surprising change, revealing a connection to the forever people of New Genesis.
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S01E18 Secrets
November 18 · 22min find the promo
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It's Halloween. Artemis and Zatanna are in Manhattan for a girls' night out. There, they encounter the deadly Harm, who has a secret.
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S01E19 Misplaced
March 3 · 23min find the promo
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When every adult on the planet disappears, only the team, Zatanna, and Billy Batson are left to defeat the five most powerful sorcerers on Earth. In the end, Zatanna officialy joins the team and Zatara becomes the new Doctor Fate.
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S01E20 Coldhearted
March 10 · 21min find the promo
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Wally West comes oh-so-close to fulfilling his birthday wish to finally fight alongside the Justice League. Instead, a massively disappointed Kid Flash is taken off the mission and tasked with a simple delivery job. But a few deadly surprises await the birthday boy along the way.
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S01E21 Image
March 17 · 22min find the promo
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A covert operation against Queen Bee in Qurac forces Miss Martian to finally face her greatest fears and her biggest secrets. But will she reveal those secrets to her friends—or allow what she's hiding to take down the entire team?
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S01E22 Agendas
March 24 · 22min find the promo
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Superboy returns to Project Cadmus, where he learns the top-secret genetics lab may have created another Super-clone.
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S01E23 Insecurity
March 31 · 22min find the promo
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Red Arrow's return undercuts Artemis' confidence, while the team's mission to track down Sportsmaster threatens to expose her darkest secrets.
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S01E24 Performance
April 7 · 22min find the promo
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The Team goes undercover at the Haly International Traveling Circus to locate a thief stealing weapons technology across Europe. But a thief isn’t all they find…
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S01E25 Usual Suspects
April 14 · 22min find the promo
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The Team gets a new member and a new mission – a mission that may finally expose all the Team’s secrets... and all their lies!
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S01E26 Auld Acquaintance
April 21 · 22min find the promo
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The Team finally learns the identity of the traitor in their midst, forcing a battle against an enemy more dangerous than any they’ve ever faced before!