After years of special assignments and covert ops, Special Agent Sam Hanna returns to his hometown of New York City for a brand-new mission. When Sam's friend and Navy reservist Jack Halloway is found dead, he requests permission from Assistant Special Agent-In-Charge Robyn Wells to investigate his friend's death. Robyn pairs Sam with roguish agent Nick Schaeffer, who introduces him to the rest of the team: clean-cut Wyatt Sellers, bright-eyed Addy Ross  and hacker-turned-computer guy Sean Sullivan. As the team investigates Jack's death, they work together to gather key information that can help find the culprits.