★ 4.7
★ 3.8
★ 3.6
★ 4.9
★ 4.6
★ 6.6
★ 0.0
★ 6.2
★ 5.0
★ 6.5
★ 4.4
★ 6.7
★ 6.0
★ 5.1
★ 6.8
★ 5.7
A group of college friends' Thailand adventure turns deadly when they become trapped in submerged caves with a dangerous predator. As oxygen runs low, past conflicts emerge in their desperate fight for survival.
