The ranch of Lon Talbot is under attack from wolves, and the Planeteers are called in to investigate. Talbot blames the attacks on a local occult known as "Friends of the Wolf," a group dedicated to reintroducing wolves back into Yellowstone national park, after they were forced out when the park became an attraction. The Planeteers investigate further, resulting in a confrontation with a mechanical "robo-wolf," owned and operated by Looten Plunder! Captain Planet, with the help of REAL wolves, bring an end to the robo-wolf's rampage before further destruction can be caused.
Elenco: Frank Welker , Joey Dedio , LeVar Burton , Whoopi Goldberg , Janice Kawaye , Kath Soucie , Scott Menville , Buster Jones , Clyde Kusatsu , David Warner , Dean Stockwell , Edgar Gilbert , George Hearn , James Coburn , Jim Cummings , Lewis Arquette , Margot Kidder , Martin Sheen , Tim Curry , Whoopi Goldberg .