FBI agent Sarah Murphy is stabbed and beaten, and her brother is kidnapped. When Riley O’Connor and Jack Beckett investigate, they uncover a plot to steal $25 million in cut diamonds from a well-known retailer who must move the rocks to a new location. That was the easy part. The hard part is figuring out how the thieves plan to do it. As the clock ticks off the hours, murder and mayhem unfold as the bad guys try to avoid getting caught. Will Beckett and O’Connor stop the biggest diamond heist in San Francisco history, or will they lose a high-stakes game of cops and robbers.