Below Teaser Trailer: Josh Hartnett, Charlie Heaton, and Mackenzie Davis Star in the New Thriller - Netflix Tudum

  • Sneak Peek

    What Lies Below? Watch Josh Hartnett Confront an Unseen Terror in New Teaser

    The thriller, starring Hartnett, Charlie Heaton, and Mackenzie Davis, splashes onto Netflix Oct. 8. 

    By Thea Glassman
    July 28, 2026

There’s a mysterious entity lurking beneath Newfoundland’s ocean, and it’s up to Josh Hartnett to find out what’s going on. 

In a newly released teaser trailer for Below, we meet Calvin (Hartnett), a fisherman whose small village is under attack by a violent creature. As locals succumb to mayhem brought on by strange events, and Calvin’s son Wade (Charlie Heaton) starts exhibiting terrifying new symptoms, our hero teams up with Fonda (Mackenzie Davis), a marine biologist, to uncover what secrets lie beneath the water. 

“I read the first two scripts so quickly, in less than an hour,” Hartnett tells Tudum. “The voice was so clear, the concept was so engaging, and the character was fantastic. I’d never read anything like it before.”

The show, which was shot on location in Newfoundland, was born out of creator Jesse McKeown’s affection for the Canadian province. “It’s such a unique landscape and so rugged, dangerous, isolated, and scary in a lot of ways,” he shares. “But then there’s also this other side to it — the community is so warm, and the people are so funny, and there are many eccentricities about the place.” 

To properly capture Newfoundland’s way of life, Hartnett and Heaton put boots on the ground and immersed themselves in the culture. 

“[One of the actors] and I went off with a couple of lobsters, a pot, grabbed some water out of the sea, and he told me all these stories,” Hartnett recalls. “He had so much knowledge of the history of the island and the people; listening to him speak helped a lot.”

To master the regional accent, Hartnett listened daily to a local radio station that featured fishermen discussing their trade. Heaton hung out in bars outside Newfoundland’s capital, St. John’s, soaking in the culture. “When you meet Newfoundlanders, they want to bring you in, and they want to look after you,” Heaton says. “I remember on day one, my driver said, ‘Let me know if you want me to bring supper around later. I live down the road.’”

Continues Heaton, “I was like, ‘What do you mean?’ She said, ‘Oh, I’ll just bring you supper, it’s no problem.’”

The team forwent green screen and filmed scenes on Newfoundland’s ocean to capture the real-life locale. “We were out with the Coast Guard on the water, driving these boats, and I’m actually out in the ocean kayaking,” Heaton says. “I’ve done a lot of work on practical locations in Stranger Things, but I’ve never been out on the ocean like that, which is insane.”

Davis also found herself in uncharted territory. “Josh and I were like two buddy cops solving a mystery. I’ve never done that in anything else … I like being in that world so much.”

She adds, “Below is a show I’d want to watch. I want to watch shows that are funny and scary and smart and propulsive and have a brain behind them. It has all those things, which is rarer than you might think.”

Below arrives on Netflix Oct. 8. 

Related Tags

Shop Below

Go to Netflix Shop

Sneak Peek

  • Ransom Canyon Season 2 Preview: See Staten Learn that Quinn Has Returned to Town
    Josh Duhamel and Minka Kelly tease their characters’ reunion on July 23.
  • Joe Locke, Kit Connor, and Alice Oseman give a sneak peek at the finale film.
  • A new chapter in the saga of Little House on the Prairie. 
  • Gordon Cormier says Season 2 “is definitely a level up.”
  • See best friends Maddie, Helen, and Dana Sue visit New York in a sneak peek.
  • A childhood flashback sets the tone for Peter’s most dangerous season yet.
  • LA’s hottest defense attorney is beginning to know how his clients feel.
  • Watch the first few minutes of the new season, only on Tudum.

Drama

  • Explore the dangerous dynamics of the Bellarie dynasty in the shocking drama.
  • Plus: The Idaho Murders: College Nightmare tops the English TV list.
  • These series are hits with audiences worldwide.
  • Sophie Nélisse, Roby Attal, and Francesca Reale star in Carley Fortune’s series.
  • Ella Beatty plays the infamous accused axe murderer in the series’ new season.
  • The acclaimed LGBTQ+ epic will arrive on Netflix later this year.
  • Watch the trailer for the companion podcast, hosted by Ria Ciuffo, right now.

Latest News

  • Where Are the Queer Eye Heroes Now? 
    Jonathan Van Ness, Karamo Brown, Tan France, Jeremiah Brent, Antoni Porowski

Popular Now

  • Connor Swindells, Patrick J. Adams, and Merritt Wever star in the series.
  • Championship belts will be defended, and “The Ruler” faces “The Beast.”
  • Stream The Whisper Man, The Last House, the final season of Outer Banks, and more.
  • In FIFA World Cup: Launch Edition game, your living room becomes a stadium.