In the autumn of 1900, outlaw Claude Barbee puts his 'retirement plan' in action, attempting to lead his train-robbing gang across Texas to recover a cash stash hidden after a botched railroad heist. They soon discover they're being hunted by more than just the law - but rather a merciless, unexpected evil quite possibly greater than themselves.

Jeff, at 30, lives in his mom's basement, unemployed, looking for signs about what to do with his life. He answers a wrong-number call for "Kevin". Later, on a bus, he sees someone wearing a jersey with "Kevin" on the back. Jeff follows him. Meanwhile, Jeff's brother, Pat, a tone-deaf salesman, upsets his wife by buying a Porsche they cannot afford; Pat runs into Jeff soon after and they see Pat's wife with another man. At her job, Jeff and Pat's mom receives e-mails from a secret admirer; she tries to figure out who it is. Misunderstandings, errors, and confrontations abound. A backup on the Lake Pontchartrain Causeway brings things to a head.