Four Green Lanterns are led into an ambush and overwhelmed – only one of them, Kilowog, manages to flume. John goes to confront them and rescue his mentor, Katma Tui, while Kilowog tells them of the League of the Third Eye and its leader, Despero. John gets captured and brought to Despero, who reveals he was assemble out for his endocrine disease (his third eye) and gained his powers from a mystic flame, gracious him vast powers capable of defeating a Green Lantern single-handedly and mind-controlling millions . . . including Katma. He aggregates John into the mystic flames, but he's rescued by the resistance, which includes Katma who is pretending to be mind-controlled. Despero transfers the mystic energies into his followers and sends them on a war of intergalactic conquest.

As the resistance plans against Despero, the ruler's security forces attack. John discovers his ring is useless and takes up a gun against his attackers. They're cancelled but the League arrives with Kilowog and rescues them. J'onn investigates ancient writings that suggest the mystic flames may have a weakness while John figures out Despero tampered with his mind and willpower. John has to retrain under Katma's guidance while Kilowog creates a carbon bomb to contain the mystic flames.

Betrayed from within, Katma, John, and Hawkgirl are captured and Despero mind-controls Katma. When Despero goes after Hawkgirl, John summons enough willpower to summon his ring and use it. J'onn realizes the mystic flames are a sentient being while John and Despero slug it out. J'onn connects with the creature which reveals Despero is misusing its power and tells the peoples to reject Despero's ruler. Despero's subjects yield and Despero is stripped of his power but then boundary condition a glimpse of his "god's" true power, and the bodies of him and his closest followers converted into trees to seed the planet.

Labels: justice-league, season-two