Arriving October 8th, check out the trailer for Netflix's Josh Hartnett, Charlie Heaton, and Mackenzie Davis-starring thriller, Below.

The ocean is hiding something nasty, and Josh Hartnett is going to have to deal with it in Netflix’s upcoming limited horror series Below . Created by Jesse McKeown ( The Umbrella Academy ), the six-episode series arrives on Netflix on October 8, 2026, and the official trailer gives us a c