Two highly trained operatives grow close from a distance after being sent to guard opposite sides of a mysterious gorge. When an evil below emerges, they must work together to survive what lies within.
| Actor | Role |
|---|---|
 Miles TellerLevi | Levi |
 Anya Taylor-JoyDrasa | Drasa |
 Sigourney WeaverBartholomew | Bartholomew |
 Ṣọpẹ́ DìrísùJ.D. | J.D. |
 William HoustonErikas | Erikas |
 Kobna Holdbrook-SmithBlack Ops Commander | Black Ops Commander |
 James MarloweBradford Shaw | Bradford Shaw |
 Julianna KurokawaAirman | Airman |
 Ruta GedmintasWWII Scientist | WWII Scientist |
 Oliver TrevenaCrewman | Crewman |