Sherlock offers to help his father with a problem, providing he agrees to leave NYC. He and Watson also investigate the deaths of two lookalikes.
Danny believes a serial killer is on the loose when two separate murder victims are identified as members of a group charged with a vicious attack.
Frank clashes with a journalist who refuses to reveal a source who has admitted to murder. Plus, Danny works with troubled teens.
Multiple women take credit for murdering the man they worked for. Meanwhile, Frank and his priest clash over how to deal with a boy who has been stealing from the church and Nicky gets into trouble.
Reunited, the team pieces together the cause of a mysterious explosion at a trailer park, how a stripper ended dead in a street wearing a shopping bag and how two bodies turned into soup in an abandoned car.