An injured victim has disappeared... Can a park ranger and her K-9 find him? When search-and-rescue park ranger Autumn Mercer and her K-9 partner, Sherlock, meet a stranger in the mountains whose brother is injured, they drop everything to help. But all they find where Derek Peterson last saw his sibling is a trail of blood--and men who want them dead. With gunmen closing in, can Autumn and Derek survive long enough...