“Cascade” (** out of four) was an overly familiar suspense potboiler about a teenage girl (Sara Waisglass) who goes on a hike in the Canadian wilderness and finds a crashed drug plane and has to play cat-and-mouse with a ruthless gang (Josh Cruddas, John Tench, and others) who want her dead at all cost. Good-looking film is well-lensed by Diego Guijjaro on beautiful Canadian locations but covers well-worn and all-too-familiar territory. No relation to the television series of the same name.