Shawn investigates the disappearance of a mummy from the National History Museum.

Shawn and Gus investigate the murder of a fashion designer.

The duo investigate the death of a member of a local fraternity chaired by Lassiter's father-in-law.

Shawn and Gus search for a killer on the set of a Spanish telenovela.

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 ...

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 ...