Portlock (Sugpiaq: Arrulaa'ik) is a ghost town in the U.S. state of Alaska, located on the southern edge of the Kenai Peninsula, around 16 miles (26 km) south of Seldovia.

While some stories suggest that the town's abandonment was due to the presence of a creature known as Nantiinaq (often associated with Bigfoot) these accounts emerged decades later, in the 2000s.

[1][5] The legend of Nantiinaq is deeply rooted in the oral histories of Native Alaskan communities, particularly among the Alutiiq people of the Kenai Peninsula.

The show follows a team investigating reports of a Bigfoot-like creature terrorizing the former inhabitants, supposedly leading to the town's desertion in the 1940s.

Most of the people who left Portlock in the 1940s moved to the nearby Native Alaskan villages of Nanwalek and Port Graham.