ER
It's All In Your Head
Season 8, Episode 15 · Aired 2002-02-28

Synopsis
Mark learns that his tumor is back and inoperable, giving him 4-5 months to live. Corday is living in a hotel, and confesses to Benton that she thinks she's left Mark. Susan cares for Mark after his first radiation treatment. Abby learns that the case against Brian has been dropped because somebody beat him up. Seeing Brian enter her building, she seeks comfort at Luka's, where he's engaged in a game of Pictionary with his friends. Jerry and Frank clash, leading to a fistfight. Chen has a stalker.
In the series
This episode is part of ER (1994–2009) on NBC.
Steadicam adrenaline and cast breakouts on a weekly trauma loop.
Key cast
- Anthony Edwards as Dr. Mark Greene
- George Clooney as Dr. Doug Ross
- Eriq La Salle as Dr. Peter Benton
- Julianna Margulies as Nurse Carol Hathaway
- Noah Wyle as John Carter
- Gloria Reuben as Jeanie Boulet