Fishing: Barents Sea - Line and Net Ships is a downloadable content (DLC) expansion that introduces five new vessels designed for specific commercial fishing methods in the game's simulation of Northern Norway. The Gameplay "Story"

The "PLAZA" update (v1.2) specifically refers to the release version that added these five ships:

. Your goal is to build a fishing empire by mastering different techniques, upgrading your fleet, and managing quotas for species like Line and Net Ships DLC Features

The game itself follows a progression-based narrative where you inherit a small boat from your grandfather in the port of Hammerfest