Kerry Weaver's last regular appearance on "ER" was in the Season 13 episode called "A House Divided" Episode 280 in which Abby Lockhart expressed to Dr. Weaver that if it had not been for her, she'd never have become a doctor or a mother; she and Kerry shared a tearful farewell moment. As Kerry packed up and walked out of County General's doors for the last time, she only asked Luka to take care of the place for her and advised him not to make her mistake-getting involved in hospital politics, indicating that she forgave him. Luka took her advice and stepped down as Chief towards the end of the season, just before he married Abby.