A group of climbers embarks on a dangerous climb that has been off-limits for years. What initially begins as an audacious expedition transforms into a battle for survival against a force that toys with them.
| Actor | Role |
|---|---|
 William FichtnerConner | Conner |
 Jocelyn HudonDana Watkins | Dana Watkins |
 David ClennonKurt | Kurt |
 Christina KirkmanEmily | Emily |
 Kyle GassBill | Bill |
 Brette HarringtonSelf | Self |
 Hazel FindlaySelf | Self |
| MMarc HillsSean | Sean |
 Rachel FinningerKristen | Kristen |
| NNicholas BaroudiColton | Colton |
 Jolene KayKerrie | Kerrie |
 Adrian BallingerCharles | Charles |
 Elise GreeneJessie | Jessie |
 Alex HonnoldSelf | Self |
 Wayne Charles BakerGuyustees | Guyustees |
 Gabe GreenspanRadio | Radio |
 Kevin CaliberGovernment Agent | Government Agent |
| AAshley Undercuffler1959 Assistant | 1959 Assistant |
| MMichael J. ChenLucky | Lucky |
 Benjamin RawlsBase Jumper | Base Jumper |
 Yanni Walker1959 Government Agent | 1959 Government Agent |
| SScott BennettJustin | Justin |