Coming off an episode in which the Psych team showed some "True Grits," this week's season six finale will take Shawn, Gus and company to "Santabarbaratown."

To close out the latest run - new installments returns in October - look for Shawn, Gus and Henry to cause some trouble when they reopen a 20-year old investigation because a woman's corpse surfaces amidst a pile of garbage.

Lolita Davidovich and Rob Estes will make appearances on the episode, as the following teaser previews a shocking reveal that might change everything. Watch now:

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