Onscreen, at least, there are enough rangers to keep Yosemite running and to investigate a mysterious death at El Capitan.

Kyle Turner (Bana) is an Investigative Services Branch (ISB) special agent at Yosemite National Park. It’s a federal position that sets him apart from his park ranger compatriots, including friend and mentor Paul (Sam Neill) and sarcastic Milch (William Smillie), who has no patience for Kyle’s trademark surliness.

In the perennial quest to find a fresh twist on the murder mystery genre, Netflix’s “Untamed” (out July 17) focuses on an impressively obscure type of cop: a federal investigator for the National Parks Service.