The top scientists on Neuth, a perfectly ecological planet in a far away galaxy, have predicted an environmental doomsday for Earth. Garth Davenger is a rebellious college student living on Neuth. His father died trying to get Earth a message. Being the only Neuthling to grow up watching Earth's television, Garth goes against the Safety Council's policy of not interfering with interplanetary affairs. He embarks on a dangerous mission to show the people of Earth how to save their planet as, The Earth Avenger.