Hurtling past the downtrodden communities of Depression-era America, painter Val Welch travels westward to the rural town of Dawes, Wyoming. Through a stroke of luck, he's landed a New Deal assignment to create a mural representing the region for their new Post Office.

A wealthy art lover named John Long and his wife Eve have agreed to host Val at their sprawling ranch. Rumors and intrigue surround the couple: Eve left behind an itinerant life riding the rails and singing in a western swing band. Long holds shady political aspirations, but was once a WWI sniper-and his right hand is a mysterious elder cowboy, a vestige of the violent old west. Val quickly finds himself entranced by their lives.

One day, Eve flees home with a valuable painting in tow, and Long recruits Val to hit the road with a mission of tracking her down. Journeying from ramshackle Hoovervilles to San Francisco nightclubs to the swamps of Florida, Val's search for Eve narrows, and he soon turns up secrets that could spark formidable changes for all of them.