Episode Title:Serial Thief.Episode Description:Someone has cleaned up all the pencils that belongs to Sam and were now shrunk. Sam asks the S.B.I. to figure out how this happen. They suspect some students that were responsible for this incident, But, no one listens. Until with the help of Sally's pen pal, Anna. They finally found out who's the real person responsible for this cause. Culprit: Cristelle.