An explosion in a high school science lab brings a flood of patients to the ER. Lawrence's memory continues to deteriorate, and more staff members become suspicious. Elaine tells Carter that she intends to go to Europe for a couple of months. Lucy and Carol compete for the one available rehab bed each of their patients needs. Dr. Dave learns about sympathy from a girl whose face was burned in the explosion. Benton inquires about DNA testing. Jeanie's home life becomes hectic, taking care of her new baby.