Power Yoga Much?.A hot new yoga studio has been gaining popularity, however, when it is connected to a series of kidnappings, the spies are put on the case. They discover that the mysterious figure behind the craze is none other than Shirley, the Power Yoga Chi-Kwon-Do instructor from the Boy Bands episode. Bitter over losing her studio, she is back for revenge and has gathered up people from her original classes (including Mandy) to join her in her quest for power. Sam is brainwashed into supporting Shirley, leaving Alex and Clover, along with Jerry and his WOOHP agents to save the day. In the subplot, Sam's gym teacher threatens to place Sam in a remedial class for failing wall climbing.