Casey Dawson, the former helicopter combat rescue pilot, has formed her own air search and rescue business, Charlie Delta Rescue, with a new crew. But her copilot is no stranger. Gabe Lassiter was her commanding officer in Afghanistan, and they made a good team over there.
Together once again, but with roles reversed, Casey and Gabe face their first challenge—a raging wildfire in Yellowstone National Park.

Both army veterans carry their own secrets and burdens as they join forces to rescue stranded vacationers in remote areas of the park.