Sparks fly when a neighboring precinct moves in with the Nine-Nine. Jake's reunion with an old partner yields an unhappy surprise.

Pimento and Rosa decide to pick up where they left off and get married, so the whole squad preps a perfect wedding under Amy’s careful direction. Pimento enlists Jake and Gina to hunt for his grandmother’s ruby earrings for Rosa to wear in the ceremony, but the universe has other plans for them.

After a threat from Murphy, Holt stashes husband Kevin in a safe house with Jake. Rosa goes undercover at a salon. Scully reveals an actual skill.