A cold case solved by the K-9 unit...

but the past is not so easily escaped.

Decades after her parents' murders, Penelope McGregor's grateful the killer's finally been identified--until he comes after her. Now Detective Tyler Walker and his K-9 partner, Dusty, must protect Penelope and catch the culprit...while making sure his little girl stays out of the crosshairs. But can the single father outplay a killer whose endgame will leave no one safe?