Shawn and Gus investigate a man who has disappeared from a local retirement community.
Shawn is shocked when he learns that Gus is married after Gus' wife unexpectedly shows up. She asks the men to take on a missing-persons case.
Christmas with the Gusters is ruined when Gus' parents' neighbor is killed, a clue leads Lassiter to look at Mr. Guster more closely. Evidence leads the police into arresting Gus' mother too, and Shawn and Gus vow to get them out of jail.
Shawn and Gus find themselves trying to outwit a bounty hunter when Juliet asks them to find a suspect who escaped from her custody. The problem is, once they find him, Shawn believes his claims of innocence, meaning they not only have to capture him, but prove he's been set up.moreless
Shawn and Gus want to be put on Lassiter's burglary case, but a sleep-deprived Chief Vick orders them to find her a nanny instead. Unfortunately, at least from Lassiter's view, the two teams keep crossing paths, and Shawn sees an opportunity to horn in on the more interesting case.
Shawn and Gus take on academia as lecturers at a school for the gifted where two students suspect a teacher of murder – they just don't know who's been murdered or the murderer's identity. At the precinct, Juliet lobbies hard for lead position on the next case, and Lassiter hands her a "gimme". The same case Gus and Shawn are working.moreless
Shawn and Gus are put on the case when a food critic is murdered. However, Gus' Uncle Burton is in town, and due to a misunderstanding, Gus must pretend to be the psychic detective to avoid disappointing his family.
Gus and Shawn's childhood nemesis, now a horse jockey, asks the duo for help in discovering why his horses never win. The investigation develops into a murder case after a jockey dies while racing.
Shawn and Gus go undercover as talent show contestants to investigate a number of failed attempts to kill one of the judges.