Psych: Season 4, Episode 3

4 - 3: High Noon-ish

An Old West tourist attraction called Old Sonora, run by Sheriff Hank Mendel (James Brolin), is in danger of being shut down due to sabotage. Since Lassiter is very fond of the town - he spent many weekends there as a child - he enlists Shawn and Gus to investigate.