Plot summary
Shawn and Gus are recruited by Walter Snowden ( Bruce Davison ) into a think tank, joining Boyd ( Miguel Ferrer ), Svetlana ( Sandra Hess ) and Alan ( Alex Zahara ) to help prevent the murder of business tycoon Ashton Bonaventure ( Chris Sarandon ). While Shawn doesn't shine in the group, he figures out that someone in the think tank was using it to figure out ways to kill Bonaventure, so he convinces Bonaventure to put him in charge of security and re-assembles the remaining members to help him prevent the assassination attempt.
Credits
Adapted from Wikipedia contributors, Psych season 4. HTML formatting and reference markers removed.