Jason Lair (Josh Lucas
) is a simple man with a simple wish: a normal life. This isn't an easy goal for the mild-mannered bank employee: Jason is newly separated from his wife, who has left him to care for their six-year-old son Zach (Jonah Bobo
) while she paints in Nepal, and his ailing grandfather Henry (Michael Caine
), a former archaeologist close to death, who is investigating alternative rituals for his impending funeral ("I'm not going in the ground!" he protests.) So when Jason's estranged father and Henry's son, Turner (Christopher Walken
), whose checkered past includes exploits from the musical to the criminal, pays the family an unexpected visit, nothing is "simple" or "normal" in Jason's life anymore.
In the coming days, the somewhat reluctant Lair men will embark on a trip not only through the mythic beauty of the Desert Southwest, but across the family's own rocky emotional landscape. Forced together by a deep loss, these very different people find a great deal along the way--devastating secrets, amazing discoveries and, just as Henry wanted... each other.