Dangerous Mission (1954)

Witness to a mob killing and afraid to testify, young Louise Graham flees to Montana where she hopes to disappear working in the gift shop at Glacier National Park. Staying at the park are vacationers Matt Hallett, ex-marine, and Paul Adams, amateur photographer, both obviously very interested in Louise and both vying for her attention. Louise is unaware that one is a mob hitman, hired to kill her to prevent her from testifying, and the other is a cop working for the New York D.A.'s office, sent to protect her.