American Monster (2016)

S2E18 Legion

Following the brutal murder of a father and son, detectives uncover a troubling pattern of missing teenage boys in the same area. As they face reluctance from the community, the investigators suspect a connection to a bicycle theft operation. Their search leads them to a dubious studio owner, who manipulates the youths, subjecting them to a form of brainwashing to affirm their loyalty and value. The detectives race against time to unravel the sinister scheme and rescue the boys before it's too late.