McHale's Navy (1962)

S2E16 Creature from McHale's Lagoon

Gruber and the crew hatch a plan to profit from fake pearl oysters, but their scheme goes awry when the unscrupulous Binghamton seizes control of their venture. Just when things seem bleak, Chief Urulu steps in to challenge Binghamton's authority. In response, McHale and his men devise a clever strategy that leverages an ancient local superstition along with some innovative Japanese tech, ultimately bringing the entire operation to a halt.