Undercover Operation by Maggie K. Black

Rescuing valuable stolen puppies requires a K-9 officer to go deep undercover.

K-9 officer Asher Gilmore and trainer Peyton Burns have two tasks: rescue three stolen bloodhound puppies and expose a drug ring. To outwit the criminal masterminds, they must go undercover as married smugglers with the help of an underwater-detection dog. But infiltrating the crime ring proves more dangerous than expected, putting the operation, the puppies and their own lives at risk.