M9, T9: Abby is distressed when her troubled mother, Maggie (recurring guest star Sally Field), interferes with the treatment of Abby's bipolar brother, Eric (recurring guest star Tom Everett Scott), at a psychiatric hospital. Pratt treats a frightened young girl, Morgan Brenner (Megn Ryan Vint), who has been injured in an auto accident and desperately wants to hide a secret. Meanwhile, dissolute Kovac forms an unlikely bond with a lonely elderly woman, Matilda (Mary Carver), who makes him a surprising offer; Chen is overcome with upsetting memories when a baby is abandoned in the emergency room; and Pratt takes action after his luckless brother, Leon (recurring guest star Marcello Thedford), is terminated from his menial job. Series star Paul McCrane makes his "ER" directorial debut.