Captain Planet and the Planeteers - Season 1 Episode 5

Mad scientist Dr. Blight and radioactivity-dependent mutant Duke Nukem deliver a fake bomb threat to the Planeteers through Blight's smart computer MAL, who arrive and are forced to call Captain Planet. He disables the machine that's supposed to make everything work, but in freeing the Planeteers from a forcefield is captured. The villains say they'll only release him if the Planeteers deliver a lifetime's supply of radioactive waste – in which case not even Captain Planet could do much for the world…