When a murder occurs in Syracuse which mirrors the death of her sister, Carrie and Al travel upstate to confront the suspect. (Elias Koteas guest stars)
Carrie goes undercover with a team of bank robbers when The Major Crimes Section gets a lead on the gang's leader, a notorious thief who rarely shows his face. Sendhil Ramamurthy guest stars.
Eliot and the mayor are trapped in an elevator by a cybercriminal who threatens to send them to their death, forcing Carrie to work from within the building to thwart his plans.
The murder of an urban explorer leads Carrie and Al to not only search for the killer, but to pick up the trail of clues the victim was following on the hunt for a treasure supposedly hidden under the streets of New York.
When the scientist who helped Carrie understand her memory abilities is murdered, she must track down other people with the same skill in the hopes that one of them holds the key to finding the killer.