Big Sky (2015) online

Hazel (Bella Thorne) suffers from a crippling case of agoraphobia. So much so that it causes a rift between her and her mother, Dee (Kyra Sedgwick). Hazel and her mother decide to go on a road trip to a desert facility to help Hazel deal with her fear but when gunmen and brothers Jesse (Frank Grillo) and Pru (Aaron Tveit) attack them, Hazel has to battle her fears so she and her mother can survive.