Shawn and Gus return to Vancouver to visit their old nemesis Despereaux in prison at the felon's request, who then uses them to escape and pull one last job before he is extradited to the United States.
Amanda enlists Jesse's computer-nerd friends to find a killer, after she accidentally surfs across an online murder. Meanwhile, Jesse's girlfriend, Susan, comes down with a case of food poisoning after dining at Barbecue Bob's.
Shawn and Gus help the SBPD solve a case, but are soon reprimanded for their efforts because they did not follow police procedure. As a result, Chief Vick arranges for them to take a 3 week crash course at the Police Academy.
Shawn's antics cause evidence to be thrown out in the high profile prosecution of a known crime lord named Czarsky, resulting in the dismissal of the entire case and the firings of not only the Psych agency but also of Henry.
Jane's efforts to help a teenage computer wizard reveal that he was kidnapped as a child. And as Stacy and Nikki look to open a new bakery, Kim defends her estranged father against a greedy and ruthless CEO.
When Cara finds her life spinning out of control, she returns to the scenic Lowcountry to visit her mother. Before long, the rhythms of the island open her heart in wonderful ways as she repairs the family beach house.