Netflix has released the first trailer for its upcoming thriller series “Below,” starring Josh Hartnett as a fisherman defending his town from a mysterious sea creature. The teaser, unveiled Tuesday, introduces Hartnett's character Calvin Penney, a stubborn but kind-hearted fisherman in Newfoundland still haunted by his father’s unexplained death decades earlier. When an unidentified sea creature begins terrorizing his coastal community, Penney must confront the threat. The six-episode series will have its world premiere as part of the Primetime program at the Toronto International Film Festival in 2026. The trailer emphasizes the suspenseful, creature-feature tone, with the unseen monster lurking in the waters off Newfoundland. Hartnett, known for roles in “The Black Phone” and “Penny Dreadful,” leads the cast. “Below” is the latest genre entry for Netflix, which has found success with series like “Stranger Things” and “The Sandman.” The show draws comparisons to the supernatural drama “Widow’s Bay” but focuses purely on a sea creature menace. No release date beyond the TIFF premiere has been announced.