Godzilla: The Series

Ring of Fire (2x17)

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The Fire Fly, a strange creature made of living flame, attacks an oil platform in New Mexico. When H.E.A.T. and Godzilla arrive to stop it, Randy and Craven sense a chance to make a lot of money if they can exploit the monster's ability to regenerate energy. Once H.E.A.T has taken the creature out, Randy and Mendel sneak it back to headquarters for study, but things go terribly wrong when the Fire Fly regains consciousness and starts burning down everything in its path.