When FBI Agent Alex Travis receives an anonymous phone call on a September morning in 1954 with a tip concerning the now cold case of the Cache County Bank robbery, it has his undivided attention. The tip leads Travis to the top of the secluded Green canyon in Logan, Utah, where a young man named Jack Pepper proceeds to tell a story spanning the two years from the time of the robbery, when he and his girlfriend, Kate Austin, stumbled upon the crime of the century for the Cache Valley. Travis must decide if he is dealing with the suspects or the victims of one of the largest bank robberies in U.S. history.
To get the answers, it will take one more trip up the canyon, to the entrance of the Spring Hollow mine, where the daylight ends and the cold dark begins.
Agent Alex Travis returns to Cache Valley in search of an escaped prisoner, who bears a striking resemblance to one of the gang members Jack killed in the shootout in Green Canyon four years earlier. His instincts are leading him in the right direction, but he continues to be one step behind the man seeking revenge on Jack & Kate, and their young daughter, Emma. By not telling the whole truth of the missing bank money at the time of the recovery, Agent Travis has put them all in jeopardy. He must now decide if he can solve this case on this own, in time to save his friends, or if he risks asking for help from the Bureau and ruining his career in the process, a possibility that could land him in jail as well.
In a race to see who finds who first, the search shifts to nearby Logan Canyon, where Agent Travis will be tested by his own conscience as much as by the man he’s hunting.