The Planeteers are shrunk by Sly Sludge and send to a dump. They manage to build a plane to escape but the effects of the shrinking ray is wearing off. So the Planeteers call Captain Planet for help.
Did You Know?
Captain Planet was summoned while the Planeteers (and thus their rings) were still growing but not yet at their full size, so instead of being at his normal size he should have been slightly smaller before making his way up to it at the same speed. See more