Il Woo thinks that 'owning his own house' and 'living a stable and happy life' are equivalent and therefore becomes a 'fake nature-lover' in an isolated countryside village called Bongtaeri in order to save a pharmaceutical company and earn 200% of his yearly income. Bong-sook is forced to play a trick in order to achieve her dream of becoming a police officer due to her parents' announcement to stop financially supporting her and transforms into a 'fake farmer' in Bongtaeri, the mountain village where her maternal grandfather lives. The two get involved when a mysterious shoe theft incident occurs in Bongtaeri.

The ocean is the beginning and end of all life. Yet now, this vast cradle of life is collapsing. SEAGNAL follows the final signals from the ocean, leading us on a journey to confront the truths we’ve long ignored. From marine debris and ghost fishing caused by abandoned fishing gear to overfishing that pushes marine species to the brink of extinction, and coastal villages sinking due to rising sea levels... Our oceans are dying due to humanity’s unchecked greed, ignorance, and indifference. SEAGNAL follows seven individuals who have sensed the ocean’s warning, asking not just to heed the alarm but to reconsider how we coexist with the sea. The ocean’s final signal, SEAGNAL. Are you ready to listen?