In the second season premiere, the team takes on the intergalactic bounty hunter Lobo ... as a precursor to an alien invasion!
Watch Young Justice: Invasion - Series 1 Online Free
Miss Martian, Superboy, Beast Boy and Adam Strange arrive on the distant planet Rann to stop the alien infiltration of Earth at its source.
The team and the Justice League continue to hunt the Kroloteans that have invaded Earth - but the aliens have help from an extremely unexpected source.
While Superboy and Blue Beetle battle Intergang, Nightwing and company try to salvage the soul of a former comrade fallen from grace.
Jaime Reyes searches for a missing friend, while Miss Martian, Batgirl, Bumblebee and Wondergirl return to Bialya to discover what lies beneath.
An intruder mysteriously appears inside Mount Justice, claiming to be a tourist from the future. But who is he really? And what is his true agenda?
Artemis rejoins the team to defend a critical satellite launch - but will her first mission back also be her last?
Roy Harper seeks vengeance against the man who ruined his life.
Black Manta has a new mission for his son - a mission that should prove once and for all exactly whose side Aqualad is on!
On a covert mission to rescue some of its own, the team, Blue Beetle and Miss Martian uncover shocking secrets... and devastating truths!
When the Reach forms a devil's alliance with Lexcorp, Robin leads a squad undercover to investigate.
Black Manta seeks vengeance against Miss Martian.
Nightwing tasks Blue Beetle with chasing down a group of potentially dangerous super-powered teenage runaways. But Blue Beetle is not the only one hunting them...
A conqueror from another world becomes a wild card in an intergalactic game of supremacy - placing planet Earth square in the jackpot.
Black Manta gives Miss Martian 24 hours to live, but that may be more time than Aqualad has, with Sportsmaster and Cheshire on the hunt for his head!
A band of misfits is put to the test when Lex Luthor sends them behind enemy lines ... to rescue the team!
The team embarks on a desperate endeavor to free Blue Beetle!
The Light calls a summit to decide the final fate of Aqualad, the team… and the entire planet Earth!
On the verge of finally ending the alien invasion, the team discovers the price of victory may be the entire planet Earth!