Ted Lange

Chief Vick calls Shawn and Gus to the station after a handful of old convictions get overturned. They have to reopen all the investigations and need Shawn’s help on one in particular-Eugene Franks, who was caught with explosives meant to bomb police headquarters. It was the biggest case of Henry’s career but Vick stresses that he can in no way be involved in the investigation. Henry’s no longer on the force and could compromise any new evidence they find. But by the time Shawn and Gus get back to the Psych office, Henry is there waiting for them and wants in. Shawn refuses. As Henry leaves, he stresses that he knows he got the right guy and stopping him saved a lot of lives. Jere Burns and Ted Lange guest star.

Elliot sleeps with a handsome doctor she hardly knew and soon becomes the hospital tramp. Turk suffers from his back after operating with Dr. Amato, a very short surgeon. J.D. finds out that wearing a white coat doesn't make him a better doctor, but is upset by having Dr. Cox throw in his face that he made another mistake. And Dr. Kelso is just dying for an opportunity to lash out his anger on Dr. Cox.

It's Science Fair time and Josh is sure that this year, his is the project to beat. But when Mindy Crenshaw makes a surprise return, sparks fly in the most unexpected places.

While Shawn gives college a try, Eric and Jack devise a plan to attract women by starting a fraternity in their apartment.

Carl learns his wayward brother is in trouble with the law.