The Bullwinkle Show

Rocky & Bullwinkle - Upsidaisium (3) - The Road to Ruin or Mine Over Matter (2x11)

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Bullwinkle inherits an upsidaisium mine in a mountain that flies because upsidaisium is an anti-gravity metal. The nation needs upsidaisium, so Bullwinkle and Rocky fly the mountain to Washington. Thwarting them at every turn are Mojave Max and Death Valley Dotty.