When a mysterious force begins to disrupt their big summer fun, Noah and his friends team up with a retired police detective to embark on a monstrous adventure to save their island.

Where to watch it in Canada

No streaming offer found in Canada for now (it may be in theatres or not yet available).

Cast

Mel Gibson

Gene Carruthers

Mason Thames

Noah Reed

Julian Lerner

Eugene Wexler

Abby James Witherspoon

Sammy Devers

Noah Cottrell

Ben Driskel

Nora Zehetner

Abby Reed

Lorraine Bracco

Miss Halverson

Emma Fasano

Lilly Reed

Spencer Fitzgerald

Ronnie Harlow

Patrick Renna

Umpire

Mel Gibson — Gene Carruthers

Mel Columcille Gerard Gibson (born January 3, 1956) is an actor, film director, producer and screenwriter. Born in Peekskill, New York, Gibson moved with his parents to Sydney, Australia when he was 12 years old and later studied acting at the Australian National Institute of Dramatic Art. After appearing in the "Mad Max" and "Lethal Weapon" series, Gibson went on to direct and star in the Academy

Mason Thames — Noah Reed

Mason Thames (/θeɪmz/ THAYMZ; born July 10, 2007) is an American actor. He made his acting debut in 2017 and gained recognition for his lead role as Finney Blake in the horror film The Black Phone (2021), a breakthrough role he reprised in its 2025 sequel. In 2025, he received increased attention for his portrayal of Hiccup in the live-action fantasy How to Train Your Dragon – for which he receive

Julian Lerner — Eugene Wexler

Julian Lerner (born November 5th, 2007) is a rising star who has showcased his talent on both stage and screen, portraying 'Ray' in Disney's upcoming "Zombies 4", 'Eugene' in "Monster Summer" and 'The Artful Dodger' in New York City Center's "Oliver!". He shines as Brad Hitman in ABC's "The Wonder Years" reboot, starred in Netflix's "Yes Day" alongside Jennifer Garner, Edgar Ramirez, and Jenna Ort