In the trailer for Netflix's Below, Josh Hartnett, Charlie Heaton, and Mackenzie Davis are on the hunt for a sea creature.

      Netflix has unveiled a trailer and images for Below, the upcoming thriller series created by Jesse McKeown (The Umbrella Academy).

      The show centers on Calvin, a fisherman from Newfoundland, who collaborates with a marine researcher visiting from out of town to combat a mysterious sea creature that is threatening their tight-knit community and to uncover the island's long-hidden secrets.

      The cast of Below features Josh Hartnett, Charlie Heaton, Mackenzie Davis, Willow Kean, Ruby Stokes, Rohan Campbell, and Kaleb Horn.

      When an unknown sea creature starts attacking his hometown, Calvin must strive to keep his close community united. Eager to protect his son Wade (Charlie Heaton) and his family, he teams up with a visiting marine researcher (Mackenzie Davis) to face the creature and expose the island's concealed secrets before time runs out. Below premieres on Netflix on October 8th.