When Susan Brannigan discovers her husband, Kevin, has volunteered for yet another military mission, she accuses him of wanting to be away from his family. With their angry words echoing through the house after he is gone, a distraught Susan decides she can no longer stay. Kevin returns from the completed mission, ready to mend the rift between them, but he finds the house ominously empty. Calls to family and friends yield no clues. Has she left him? Did she take the children? With the skills developed as a reconnaissance Marine, Kevin makes it his new mission to track down his wife and children. But the trail stops cold just as he thinks he is getting close. What has happened to his family? Will he find them, or has he lost them forever?