Earthlings

January 4: Superboy, Miss Martian and Beast Boy arrive on Rann with Adam Strange to halt the Krolotean invasion at its source. They are assisted by Alanna and Sardath.

January 5: Alanna learns of Superboy and Miss Martian's relationship, that he cannot age (physically), and that he dumped her. It is revealed that Beast Boy is Garfield Logan and that his mother was killed by Queen Bee. Following a battle, Miss Martian incapacitates a Krolotean and when Superboy questions her she says that she uncovered the truth about what the six Justice League members did during their missing 16 hours.

Mark Desmond, Bruce Wayne/Batman, Arthur Curry/Aquaman, Dubbilex, Dick Grayson/Robin, Conner Kent/Superboy, Clark Kent/Superman, Kaldur'ahm/Aqualad, J'onn J'onzz/Martian Manhunter, Wally West/Kid Flash, Oliver Queen/Green Arrow, Blue Beetle, Beast Boy, Lagoon Boy, Wonder Girl, Bumblebee, Batgirl

Season two is retitled Young Justice: Invasion, and takes place five years after the events of the first season. This continues the story of the young heroes as the team (Aqualad, Kid Flash, Superboy, Miss Martian and Artemis)- now led by Nightwing- and its new members (Robin, Blue Beetle, Beast Boy, Lagoon Boy, Wonder Girl, Bumblebee, Batgirl) go deeper and more covert than ever before. As team rivalry and personal conflicts arise, the team must band together to fight the real threat that faces Earth.