Captain Planet was taken prison by Dr. Blight. The Native American father & son resolve to stop Dr. Blight but Wheeler informs them that Dr. Blight has captured Captain Planet. The son states that his father knows "the old ways of tracking" and the father employs it to locate Captain Planet.
The dam Plunder built is broken and flooding threatens the villagers. The Planeteers summon Captain Planet, who rushes to the rescue. Captain Planet heats himself up and evaporates the flooding waters into rain clouds, which will rain and restore the river in time.
Duke Nukem is overflowing with a radioactive charge, to the point where Captain Planet cannot get near him. However, Captain Planet has an idea to borrow the lead suit from Duke's very own assistant, "Lead Suit". Upon doing so, he is able to block Nukem's radiation with the protection of the suit.
Zarm, a spirit of war and conquest that was once the spirit of Earth tempts the planeteers with power and pits them against each other. Matee's "heart" power breaks him free of Zarm's control, allowing him to eventually save the planeteer's from Zarm's corruption. The planeteers realize that an iron fish ethos will do more harm than good, even if done with good intentions and summon Captain Planet to send Zarm back to his world.