Double Threat

This latest installment sees Harbor Police Detectives Park and Walker step in separate directions for a change. Park drives up to LA to embark on a deadly voyage, working with the FBI to catch a serial killer on a cruise ship. He and his fellow investigators find themselves embroiled in an Agatha-Christie-style murder mystery that gives new meaning to the term “rough seas.”

Meanwhile, Walker remains in sunny San Diego to train with MARTAC, the Harbor Police’s SWAT team, and he works a case of his own involving political assassination, white supremacists, a brutal gang of bikers, and an old enemy with new skills.

Alternating chapters spotlight our two heroes until their narratives converge in a shocking twist you won’t see coming. Are Park and Walker the real double threat, or will the twin forces of evil they’re fighting prove insurmountable? There’s only one way to find out!