Four quarters. It's not much, but when 13-year-old Kelsey Sweeney gives Dan Marlowe the coins as payment to find his mother's killer, it's enough to buy him a ticket to big-time trouble on Hampton Beach. In no time Dan finds himself knocking heads with beach drug dealers, thugs, and shady businessmen-all with something to hide. And they'll throw anything at Dan, including bombs and bullets, to get him to back off. But Dan can't back off-he's got his own demons to conquer-and helping Kelsey is the only way he's got a shot at winning that battle.