Voyage to the Bottom of the Sea (1964)

S1E8 The Village of Guilt

In a Norwegian fjord, a sea creature claims the lives of three villagers, leaving only one man alive. When Seaview arrives to probe the incident, Nelson and Crane are greeted with suspicion by the townsfolk. As they delve deeper, they discover that the last survivor has also perished. Nelson takes urgent steps to prevent the so-called “sea monster” from wreaking havoc on Seaview.