Synopsis

New York City is gripped by fear, stalked by a sniper who seems driven only to inflict terror. With each tick of the clock bringing the next potential victim closer, and the killer’s motives remaining chillingly obscure, this case threatens to be the team's most daunting challenge. The pursuit is further complicated as Beckett grapples with escalating episodes of PTSD—moments she fiercely guards from both Castle and her colleagues.