Two highly-trained operatives become close after being sent to protect opposite sides of a mysterious gorge. When an evil emerges, they must work together to survive what lies within.
 
Pass on The Gorge because the view is terrible.
 
FUN FACT:  In the christmas montage scene they play chess (referencing Taylor-Joy's breakout role in The Queen's Gambit) and then play drums (referencing Teller's breakout role in Whiplash); however this was in the script before Taylor-Joy and Teller were cast and when the two of them wanted the scene removed, director Scott Derrickson refused.