When his helicopter goes down during his fourth tour of duty in Afghanistan, Marine Sam Cahill is presumed dead. Back home, brother Tommy steps in to look over Sam’s wife, Grace, and two children. Sam’s surprise homecoming triggers domestic mayhem.

Novalee Nation is a 17-year-old Tennessee transient who has to grow up in a hurry when she's left pregnant and abandoned by her boyfriend on a roadside, and takes refuge in the friendly aisles of Wal-Mart. Eventually, some eccentric but kindly strangers 'adopt' Novalee and her infant daughter, helping them buck the odds and build a new life.