In "Passing the Torch," Nick's wildest dream comes true when he finds out that a 'Mystery Girls' reboot is in the works. The hit show's former producer, Arthur J. Stanwyck (Miller), invites Holly and Charlie to be a part of the revived show, but the ladies are not too thrilled to learn they've been recast with new young stars, Kimmee (Tobin) and Tika. When the new stars go missing on set, Holly and Charlie become prime suspects and follow their trail to Las Vegas in an effort to clear their name and solve the case of the missing starlets.