S6, E21: Jack (Baldwin) suspects Avery is hiding something when she is seemingly unmoved by news of his indiscretions. Meanwhile, Liz (Tina Fey) embraces her role as breadwinner much to Criss’s (James Marsden) chagrin. Tracy (Tracy Morgan) and Kenneth (Jack McBrayer) try to help Jenna (Jane Krakowski) find a sponsor for her upcoming wedding.