In the Special Crime Unit's most harrowing case yet, the team has three days to save a teenage girl who has been abducted by a slippery online predator. The team soon learns that this is a deeply personal case for Backstrom, who is jolted by the girl's resemblance to the victim of an unsolved case that he was assigned seven years ago. Meanwhile, Detective Sergeant John Almond's church faces eviction when he neglects to pay rent three consecutive months.