The Machine's latest number presents a unique challenge for Reese and Finch since the person has virtually no digital footprint and appears to be leading a double life.
Frank pushes to find evidence against a suspected cop killer who shot one of Henry's fellow officers years ago. Meanwhile, Danny and Baez investigate a string of murders involving adult film stars.
Goren and Eames investigate a gang of elegant predators led by a European (Michael York) who befriends, robs and kills tourists.
