ER - Season 1 - Eps 18: Sleepless in Chicago
Peter refuses to sleep, despite Hicks' order, in the middle of a 48-hour shift. His lack of sleep catches up with him when he is supposed to be watching his mother. A doctor, who turns out to be a con artist, visits the ER to use it as a model for a new hospital, in the process offering Susan a job. Jenn tells Mark she wants to separate from him. Dr. Ross treats an abused young girl. Carol receives bad news about her attempt to adopt Tatiana. Morganstern informs Mark he's leaving for Boston and will be strongly recommending Mark to his replacement, leaving a surprised Mark uncertain as to his job prospects.
About ER

Title: ER
First Air Date: 1994-09-19
Last Air Date: 2009-04-02
Status: Ended
Rating: 7.8/10 (from 845 votes)
Language: EN
Seasons: 16
Total Episodes: 331
Network: NBC
Genres: Drama
Production Companies: Hands Down Entertainment, Constant c Productions, John Wells Productions, Amblin Entertainment, Warner Bros. Television, Amblin Television
Synopsis
ER explores the inner workings of an urban teaching hospital and the critical issues faced by the dedicated physicians and staff of its overburdened emergency room.
Cast

Maura Tierney
Abby Lockhart

Parminder Nagra
Neela Rasgotra

Linda Cardellini
Samantha Taggart

Scott Grimes
Archie Morris

David Lyons
Simon Brenner

Angela Bassett
Catherine Banfield

John Stamos
Tony Gates