On her first day back at work, Nic (Emily VanCamp) is forced to confront her trauma head on when her assailant is admitted to the ER in the new episode "First Days, Last Days." Elsewhere, a bitter Cain (Morris Chestnut), now in recovery, is determined to destroy Mina's (Shaunette Renée Wilson) career, while Devon and Conrad (Manish Dayal, Matt Czuchry) are bemused by the wildly erratic performance of new intern Leela (guest star Anuja Joshi) on her first day.