After their wedding, Charlie and Amita help the team look for Don’s missing gun.
The team investigates the deaths of two men who were part of a group of friends that had been sexually assaulted by a teacher when they were young boys. Also, Charlie and Amita get a fantastic job opportunity that could put a wrinkle in their wedding plans.
The team gains notoriety while searching for jewels stolen during an awards show; Don revisits an old case; Larry returns from his adventure in the desert.
The team searches for a lost shipment of high-caliber firearms when one of the weapons is responsible for random killings throughout the city. Also, Charlie and Amita disagree on a wedding date while Don re-evaluates his relationship with Robin, on NUMB3RS.