When Leonard is contacted by a former high school bully through Facebook, he cringes at the memories. The former classmate is going through some rough times and reaches out to Leonard, not realizing that he had made Leonard's life hell. Leonard agrees to meet with his former bully and the guys decide to accompany him for support. When Leonard confronts him about how mean he was, the guy feels badly and goes into a depression, making Leonard feel guilty. In the meantime, Amy and Bernadette help Penny choose a philanthropic endeavor.