DR. WEAVER TAKES NO PRISONERS WHEN MISTAKES PILE UP IN ER; MEANWHILE, A FRIEND DEPARTS -- A wound-up Dr. Weaver (Laura Innes) goes on the warpath when she encounters sloppiness, incorrect diagnoses and improper procedures among the ER staff, and Nurse Hathaway (Julianna Margulies), Dr. Malucci (Erik Palladino) and Abby (Maura Tierney) all feel the heat of her wrath. A disobeying Hathaway earns Weaver's enmity when she revives a "do not resuscitate" cancer victim (guest star Rachel Singer) so that the patient can spend one last conscious moment with her young family while she ponders her response to Dr. Kovac's (Goran Visnjic) romantic interest -- and she makes a life-changing decision. When he's not goofing off, Malucci also gets an earful from Dr. Corday (Alex Kingston), who offers a sobering assessment of his performance. Dr. Greene (Anthony Edwards) re-thinks his father's burial request and determines to spend more time with his daughter Rachel (guest star Yvonne Zima). Noah Wyle and Ming-Na also star.