Triggered

Nine high school friends have a five-year reunion camping in a forest. They all have secrets. An unknown person straps a time bomb to each of them. Killing another gives one their time. Last one lives.

Triggered is a 2020 horror thriller movie directed by Alastair Orr, starring Russell Crous, Liesl Ahlers, Cameron Scott. It holds an IMDb rating of 4.8/10 from 8,760 votes and runs 1h 34m.