Makayla Summerlin is excited to join her grandfather, Henry, in Hong Kong during a college break. She plans to help him sail the next leg of his journey around the world on the Defiance, but events take a frightening turn when her grandfather is kidnapped and the Defiance disappears! Unsure of what to do, Makayla reaches out to an old friend for help.

Brian Jacobs' work at the consulate general in Hong Kong is just a stepping-stone for his political career. His life for the foreseeable future is carefully optimized for success, but everything is turned upside down when he receives a frantic call for help from a friend. Their meeting quickly turns into a race for survival when Makayla is almost kidnapped in front of him. Seeing Makayla again awakens old feelings inside Brian, and he knows he will do everything he can to help her, no matter the cost. When the situation turns deadly, both Brian and Makayla find unexpected help from another old friend and a Hong Kong detective. Together, the four race to find Henry and protect Makayla. Their efforts to unravel the mystery of why a wealthy crime lord would target Henry and Makayla and to find the Defiance will take them further than they ever expected to go, but will they be able to discover the truth before time runs out for Henry?