Manning his new experimental submarine, Dr. Quest embarks upon an underwater expedition. Back on the surface, Jonny Quest and Race are kidnapped by pirate chieftain Svedri and his not-so-merry crew. The two good guys are held for ransom, with the high-tech submarine as the "payoff." Making good use of the familiar Hanna-Barbera underwater "blur" effect, "Pirates from Below" was initially broadcast on January 14, 1965.