On the morning of July 12, 2017, the FBI Boston field office receives what appears to be a hoax call: a man rescued from the waters off Massachusetts has claimed that his sailboat was hijacked and used to smuggle weapons and terrorists into the United States. With local agents tasked to prepare for an evening Presidential visit to downtown Boston, and with procedures requiring a response to any threat, no matter how unreliable it may seem, FBI administrative staffer Ben Porter is dispatched to investigate the call. Can Ben, untrained in field work and relying only on his wits and intuition, uncover the deadly plot ... in time to stop it?