Shawn has to face serious competition when a talented criminal profiler named Declan Rand comes to Santa Barbara to help solve the murders of donors on a liver-transplant list.

A body relating to a 20-year-old case is finally found, and Shawn, Gus, and Henry revisit all the old suspects in order to solve the case

Shawn solves a case involving a mysterious Swedish woman and imagines how the same case would have been solved had he done one thing differently.

Lassiter receives some life-changing news and begins to lose his nerve on the job. As a result, he enlists Shawn and Gus to help him take down a dangerous criminal who tried to kill the SBPD’s Interim Chief while he was giving a speech at a press conference.

Shawn and Gus are bummed to find out the owner of their favorite food truck has been murdered. The two of them go undercover to learn the food truck ropes and find out who the killer is. While working on the case, Marlowe visits them to cure a pregnancy craving and goes into labor at the most inconvenient time.