his series was one of several DC Comics based superhero cartoons that formed part of the 60-minute compilation program, The Superman/Aquaman Hour of Adventure. Only three, seven-minute episodes of Green Lantern were produced.

Residing on planet Earth in the guise of test pilot Hal Jordan, Green Lantern was entrusted by the Guardians of the Universe (an immortal race of aliens from the planet Oa in the center of the universe) with the task of defending Earth and its space sector from the power-hungry villains of the universe.

Green Lantern's special abilities came from his power ring, a powerful device given to him by the Guardians that created green bands of energy that could be formed into any shape and were capable of doing almost anything. The power of the ring was limited only by its user's imagination and by its inability to affect anything colored yellow (although the cartoon chose to ignore this restriction). The ring also had to be charged every 24 hours by a portable, green Power Lantern (thus the moniker "Green Lantern").

Helping Green Lantern was his Venusian friend and mechanic/sidekick Kairo, a human-looking alien with blue skin and pointy ears.