The Bullwinkle Show (1959)

Season 1: Episode 125

Just as the State Police arrive to apprehend Boris and Natasha, the dastardly duo makes their escape, abandoning the truck filled with counterfeit box tops and leaping over the side of the bridge. Further downriver, Rocky and Bullwinkle continue rushing toward the open sea. Rescue seems imminent as a Coast Guard cutter approaches...until the ship’s captain, mistaking them for enemy agents, fires depth charges in their direction.