Next week marks the Psych episode for which many loyal fans have been clamoring.

On the fifth season finale, we'll watch the conclusion of the Yin/Yang trilogy, as Shawn and Gus race to save a woman kidnapped by the former.

The duo will be forced to use Yang's knowledge of Yin, allowing her to accompany them on their mission, in order to save the day.  Prepare for the returns of Ally Sheedy, Mena Suvari and Cybill Shepherd in the following official promo:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.