Long road to Mercy

Atlee Pine, an FBI special agent assigned to the remote wilds of the western United States. Ever since her twin sister, Mercy, was abducted by a notorious serial killer at age five, Atlee has spent her life hunting down those who hurt others. Now, Atlee is called in to investigate the mutilated carcass of a mule found in the Grand Canyon - and hopefully, solve the disappearance of its rider.