WARNING: Spoilers

Open with a flashback to then-detective Henry messing up a case. His superior at the time gives the case to Boone and Peters.



Cut to present day and Henry's boss is running from two unseen characters. We hear a shot.



Henry, Spencer and Gus arrive at the docks to find that Henry's former boss and SB chief Herb Wilkins has been killed in the back of a boat. Boone and Peters, now retired, arrive on the scene. Every observation Spencer makes is one-upped by Boone and Peters. Herb was not killed on the boat and was tied up. The gun found on Herb is not his and there were at least two killers.



Karen calls all the teams into her office. Peters tells Spencer he thinks he and Gus are "pests." Spencer is upset that Henry has the old guys around.



Spencer and Gus speak with a vendor near Herb's bait and tackle shop. She says he had no enemies, but Herb had been spending a lot of time with a 20-year old red head, possibly named Samantha.



Boone and Peters tell the guys they have a suspect, a man who was seen having words with Herb before he died. The guys tell them about the woman.



Boone and Peters beat the guys to Herb's house. Spencer spots lotto tickets and a piece of paper with "second wind" written on it. Spencer notices that someone searched the place for something. Boone doesn't think Herb would have hidden something important in his home. Peters thinks it must be in Herb's locker.



Based on a plaque in Herb's home, the guys go to an aquatic center and find Boone and Peters already there. Inside the locker they find a bag filled with drugs.



At the station Spencer tells Hank and Karen he thinks Herb was a king pin. Jules tells them Herb recently withdrew $50,000 from his savings account. On the way out Peters steals a book of matches from evidence.



The guys tail Boone and Peters, who pull over and tell them to leave them alone. Eventually the four agree they will work together. The matches were from a nightclub called the Dollhouse and they agree to meet there that night.



Boone and Peters once again beat them to the punch. The old guys learn Herb had been seen with a young dancer named Sarah Lynn who was known to swindle men. Jules calls Spencer and tells them they matched fingerprints found near Herb's body to a drug dealer named Otto. Otto happens to own the Dollhouse and Jules tells Spencer not to look for him there.



The four of them sneak into Otto's office and find a gun which, like the one found at the scene, has had its serial numbers filed off. Spencer finds a series of dates on a paper. Two men (Otto and his bodyguard) burst in the room and rough-up the older guys.



Spencer and Gus chase the men out to the front of the club and hear shots fired. They find Otto's body lying next to the club.



Karen yells at the guys for not following orders. All Boone got from Otto's office were some menus. She fires all four of them.



Back at the office Spencer thinks they should reunite with Boone and Peters and go find them in park.



Boone gives them a book with the job applications for all the dancers at the Dollhouse. They think Sarah Lynn and Otto swindled Herb out of his savings. Spencer wants all four of them to follow the lead but the old guys say they don't have a taste for police work anymore. Spencer notices Sarah Lynn put Herb down as an emergency contact. He is able to talk Boone and Peters into helping them clear Herb's name.



The go to Sarah Lynn's house and speak with her roommate. She had been working as a drug mule for Otto, helping move drugs for a drug lord she never met. The guys guess that Sarah Lynn must have reminded Herb of his daughter, and he used the money to help buy her freedom. The drugs in his locker were the most recent drop that Sarah Lynn was supposed to make.



They find Sarah Lynn at a home, but she refuses to come out of the house. Based on a key hanging behind her, Spencer realizes that the killer is the suspect Boone and Peters interviewed at the beginning of the episode. After Sarah Lynn closes the door we see that the man was hiding inside and has her at gunpoint.



On their way out of the house the all agree that she can't be in there alone. While Gus and Spencer distract Sarah Lynn and the killer at the front of the house, Boone and Peters sneak in the back and Boone tackles him through the door as Jules and Lassie arrive.



Karen compliments everyone's work. Boone and Peters give the guys credit. Another call comes in and Henry tells the old guys their help was a one-time thing. The old guys agree but Spencer sees them race to their car as if they're on the way to investigate.