Something sinister is going down in the Big Easy: after his family disappears in the heart of the city, Matt O'Malley turns up at a truck stop with a concussion, unable to remember who attacked him or where his wife and two children are. As suspicions of his involvement ripple through his hometown, Matt tries desperately to piece together what happened. Florida Omni Search founder Rachel Scott is determined to bring the rest of the O'Malley family home safely. But when a fisherman pulls a severed arm out of a muddy swamp, she knows the investigation needs to ramp up before the case takes an even grimmer turn. With partner Red Cooper, Rachel takes to the mysterious streets of New Orleans to uncover the truth. Along the way, she digs up a shocking revelation behind her own daughter's disappearance ? one that could alter the course of a grueling search that has spanned five long years.