Young Justice takes on The Reach in final battle and discovers that victory may cost them everything.
The villains allied with The Light hold a meeting to determine the fate of Earth.
The team attempts to free Blue Beetle from The Reach's control and avert Impulse's prophecy
Lex sends his new team of super-powered teenagers on a mission... to rescue Young Justice.
While Cheshire and Sportsmaster hunt down Aqualad to take revenge for Artemis' death, Black Manta gives his prisoner, Miss Martian, 24 hours to live.
An intergalactic conqueror comes to Earth with plans to take the planet for his own.
When The Reach's teenage experimental subjects take off on their own, Nightwing sends Blue Beetle after them. Jaime catches up to them but soon has to deal with a marauding android, Red Volcano, and the teenagers help him out.
To save his son, Black Manta sends Artemis to abduct Miss Martian and repair the mental damage that she did to Aqualad. Meanwhile, Young Justice tests their new ally, Green Beetle, and Lagoon Boy and Superboy learn the truth about the undercover operation.
Blue Beetle's enemy, The Reach, join forces with LexCorp and Robin takes a team undercover to investigate the new alliance.
An alien gladiator traps Young Justice in the Hall of Justice for a winner-take-all combat.
Blue Beetle and Miss Martian go on a mission to help their teammates and discover something unexpected.
Black Manta sends his son on a mission and Aqualad finds himself torn between his undercover mission and his friends.
Roy Harper goes after the man responsible for keeping him imprisoned for eight years and making a clone for him.
A former Young Justice member returns to the team to help defend a satellite launch against enemy attack.
A traveler from the future visits Young Justice but may not be who he claims. Meanwhile, Red Arrow and Cheshire go on a quest to find Roy Harper.
The female members of Young Justice travel to Bialya on a reconnaissance mission, while Blue Beetle tries to help a friend.
Superboy and the Blue Beetle go on a mission against Intergang, while Nightwing tries to help a former teammate.
The Kroloteans receive help from an unexpected source as Young Justice and the Justice League try to stop the invasion.
Miss Martian, Beast Boy, and Superboy team up with Adam Strange to travel to the planet Rann and stop the source of the alien invasion.
The intergalactic bounty hunter Lobo arrives on Earth and fights Young Justice... but his arrival is only the prelude to a greater threat.