Frank faces public backlash after an officer's body camera malfunctions during an altercation with a civilian. Meanwhile, Danny and Baez struggle to protect an informant after the U.S. Marshall's Service decides not to put him in Witness Protection.
Tucson, AZ, 1965: When Gretchen Fritz and her sister Wendy leave for a movie and never come home, police must infiltrate the tight-knit world of Speedway teens to discover the disturbing truth behind the girls' disappearance.