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

  • Sneak Peek

    What Lies Below? Watch Josh Hartnett Battle an Underwater Monster in New Trailer

    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

Discover More 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.

Discover More Drama

  • “Next season you start to see Kimmie step fully into her power,” says Williams.
  • Starring Rufus Sewell, the series follows a wealthy family at war with itself.
  • The drama, which will premiere at the Venice Film Festival, is his first film in eight years.
  • The Western starring Minka Kelly and Josh Duhamel is back.
  • This fall, stream all seasons of the series from co-executive producer 50 Cent. 
  • Colin Woodell, KJ Apa, and Diane Guerrero star in the drama.
  • The series returns with Josh Duhamel, Minka Kelly, and legend Patricia Clarkson.
  • A killer with a refined palette meets a criminal profiler in this drama.

Latest News

  • Everything You Need to Know About Netflix Party Games
    A glowing smartphone with "NETFLIX GAMES" on the screen sits under bold "GAME NIGHT" text, colorful neon lights create an energetic, playful atmosphere, suggesting a fun night of Netflix gaming.

Popular Now

  • In FIFA World Cup: Launch Edition game, your living room becomes a stadium.
  • Stream Voicemails for Isabelle, Office Romance, a new season of Avatar: The Last Airbender, and more.