Terry enlists Jake's help in solving a twenty year old case which his old precinct never let him forget, Charles allows Adrian Pimento to stay at his place and soon regrets it, while Amy, Rosa and Holt attend a class together.
In an attempt to prove to his old precinct that he's not a joke, Terry enlists Jake's help in solving a case from his past. Meanwhile, Adrian moves in with Charles, with mixed results, and Amy invites herself to a hyper-competitive training exercise with Holt and Rosa.