Greene must lead seminar on the ill-fated pre-eclampsia case he recently misdiagnosed. The rivalry between Carter and Chen causes Chen to make a disastrous mistake. Lewis' pregnant sister Chloe returns from Texas.

Ashley Malinger, Bari K. Willerford, Bruce Gray, David Purdham, Gregory Millar, Isabella Martinez, Jane Cecil, Joe McClain, Julie Pop, June C. Ellis, Kamar de los Reyes, Kathleen Dennehy, Maria Cellario, Peggy Pope, Rachel Cudlitz, Susan Merson