Retired K9 police dog Max thought his mission was over—until that night. Mysterious kidnappers broke into the nursery trying to take 8-month-old Lily, and Max instinctively fought them off, picked up Lily, and fled on a wild chase. As pursuit escalated, a conspiracy surfaced: Lily's grandfather, billionaire Richard Sterling, funded a secret military group called "The Eagle" that had been conducting canine enhancement experiments for years. What shocked Max even more—his handler Daniel was killed twenty years ago for discovering this secret, and Max had been implanted with an evidence chip by Daniel at birth, destined to protect this family and end the conspiracy. One retired old dog, one strong single mother, one baby who laughs at everything and senses no danger, plus a squad of K9 veterans back in action—they'll take on a global corrupt empire. From New York streets to skyscraper infernos, from underground tunnels to the global lockdown countdown, Max uses his last strength to honor the promise his handler made twenty years ago—protect, and never give up.