Shawn and Gus are hired to watch what seems like just a wall. They get distracted, inevitably when someone breaks through the wall after stealing valuables inside. The search is on for a missing dagger.
After Lassiter moves into a new condominium building and strange things start happening to him, he is forced to hire Shawn and Gus to figure out what could be causing the supposed paranormal disturbance.
When a contestant on a reality dating show is in a car accident that wasn't an accident, Shawn and Gus are hired to find out who is causing problems on the show. The duo act as contestants to get close to the suspects.
Gus and his former a cappella group perform at a charity event. Shawn has an appendicitis attack and goes to the hospital. When the host of the charity event is shot, Shawn has to work the case from the hospital. The a cappella group helps.
A funeral mortician discovers a problem with an autopsy performed by Woody, the police coroner. Marked as an accidental death, she thinks it is a murder. Shawn and Gus investigate the problem to help Woody so he does not lose his job.
Thane is released from prison after testimony from his trial is thrown out and the charges dropped. Thane wants to find the real criminal; he hires Shawn and Gus. Juliet originally handled the case. Now Shawn and Juliet butt heads to solve it.
Arriving at a crime scene with a dead body, Shawn sees another victim that he connects to an unsolved case of his father's from 20 years ago. Henry works with Shawn and Gus.