Power Yoga Much?

A hot new yoga instructor is gaining popularity, along with hordes of intensely committed followers. As this almost cult-like group tries to recruit more followers through the use of force, the spies are put on the case. They soon find out that the mysterious figure behind the craze is none other than Shirley, the POWER YOGA CHI-KWON-DO instructor from ep #034 ""Boy Bands."" Can the spies stop Shirley and her super charged army of power yoga loyalists before they take over the world? In a b-story, Sam is failing gym class because she can't climb to the top of the rope and it's in jeopardy of throwing off her entire GPA.