Young Justice is an American animated superhero series that follows the lives of teenage sidekicks and young heroes who secretly operate as a covert team under the mentorship and oversight of the Justice League. Wikipedia+2DC Database+2

Over the course of four seasons, the show matures from coming-of-age espionage stories into broader, more complex narratives involving geopolitical intrigue, metahuman trafficking, interplanetary threats, and personal growth. DC Database+3Wikipedia+3IMDb+3

Major characters include Robin (Dick Grayson), Aqualad (Kaldur’ahm), Kid Flash (Wally West), Superboy (Conner Kent), Miss Martian (M’gann M’orzz), Artemis (Olivia Queen), among others. supermanhomepage.com+3Wikipedia+3DC Database+3

Between Seasons 1 and 2, the show uses a five-year time skip, which introduces new characters (like Beast Boy) and switches up team dynamics and roles. Screen Rant+2DC Database+2

Season 3, Young Justice: Outsiders, deals with metahuman trafficking and political machinations, building on the revealed “meta-gene” from earlier seasons. Wikipedia+2DC Database+2

Season 4, Young Justice: Phantoms, focuses on the older core characters (now more mature, with traumas and challenges) while still bringing in younger heroes. EPGuides+3Wikipedia+3DC Database+3


Series Details

Here are the key details about Young Justice Seasons 1–4:

AttributeDetail / Notes
TitleYoung Justice
Developers / CreatorsBrandon Vietti, Greg Weisman vomitmedia.com+3Wikipedia+3youngjustice.fandom.com+3
GenreAnimated, Superhero, Action, Science Fiction Wikipedia+2IMDb+2
CountryUnited States Wikipedia+2IMDb+2
LanguageEnglish Wikipedia+1
Number of Seasons4 Wikipedia+2IMDb+2
Total Episodes (Seasons 1–4)98 episodes Wikipedia+2EPGuides+2
Runtime per Episode~23 to 28 minutes Wikipedia+1
Original Network / Platforms• Seasons 1 & 2: Cartoon Network Wikipedia+2youngjustice.fandom.com+2 
• Season 3: DC Universe (streaming) Wikipedia+2Wikipedia+2 
• Season 4: HBO Max EPGuides+3Wikipedia+3IMDb+3
Season / Subtitles• Season 1 (no subtitle) DC Database+3youngjustice.fandom.com+3Wikipedia+3 
• Season 2: Young Justice: Invasion The JH Movie Collection+2Wikipedia+2 
• Season 3: Young Justice: Outsiders Wikipedia+2Wikipedia+2 
• Season 4: Young Justice: Phantoms DC Database+3Wikipedia+3IMDb+3
Season 1 Air DatesPilot: November 26, 2010; regular run: January 7, 2011 – April 21, 2012 DC Database+3youngjustice.fandom.com+3Wikipedia+3
Season 2 Air DatesApril 28, 2012 – March 16, 2013 (20 episodes) IMDb+3The JH Movie Collection+3Wikipedia+3
Season 3 Air DatesJanuary 4, 2019 – August 27, 2019 (split run) EPGuides+3Wikipedia+3Wikipedia+3
Season 4 Air DatesOctober 16, 2021 – June 9, 2022 DC Database+4The JH Movie Collection+4Wikipedia+4
Major Themes / ArcsSecrets & lies, identity, loyalty, power & responsibility, political intrigue, interstellar conflict, trauma, redemption Wikipedia+4Wikipedia+4IMDb+4
Time Skip & ContinuityA 5-year jump between Seasons 1 and 2 introduced new character developments, shifts in team status, and evolving world events. Screen Rant+2Wikipedia+2
Reception & Legacy• Well regarded for maturation over time, strong character writing, complex plotting. Common Sense Media+3IMDb+3DC Database+3 
• Critics sometimes note occasional uneven pacing, animation variability, and challenges in sustaining all story threads. IMDb+2DC Database+2 
• Cult following; fan campaigns helped revive the show for Seasons 3 and 4 after cancellation. Wikipedia+3DC Database+3Wikipedia+3
Where to Watch (Legally)The series is listed on platforms like Netflix (depending on region) Netflix, and original rights are with Warner Bros / DC / HBO Max in many territories. Wikipedia+2IMDb+2
Notable Episodes / Milestones• Independence Day (Series premiere) Wikipedia 
• The time skip between S1 & S2 Screen Rant+1 
• The “Anti-Life Equation” acrostic in S3 Wikipedia+1 
• The darker, more introspective tone in Season 4, with reunions and confronting past traumas. IMDb+1