timespace coordinates: near future Mariana Trench, the Pacific Ocean/ Hainan, China, Thailand, Japan

The Meg is a 2018 US–Chinese science fiction action thriller film directed by Jon Turteltaub, loosely based on the 1997 book Meg: A Novel of Deep Terror by Steve Alten. The film stars Jason Statham, Li Bingbing, Rainn Wilson, Ruby Rose, Winston Chao, and Cliff Curtis. the film follows a group of scientists who encounter a 75-foot-long (23 m) megalodon shark while on a rescue mission at the floor of the Pacific Ocean. (wiki)