ER Season 9 Episode 1
Chaos Theory (a.k.a. Unknown Origin)
Dr. Carter, Abby and other staff of the ER are quarantined as the CDC investigate a mysterious, deadly outbreak.
9 - 22KisanganiMay. 15, 2003- 9 - 21When Night Meets DayMay. 08, 2003
- 9 - 20Foreign AffairsMay. 01, 2003
- 9 - 19Things ChangeApr. 24, 2003
- 9 - 18Finders KeepersApr. 03, 2003
- 9 - 17The Advocate (a.k.a. Side Effects)Mar. 13, 2003
- 9 - 16A Thousand CranesFeb. 20, 2003
- 9 - 15A Boy Falling Out of the Sky (a.k.a. Shifts Happen)Feb. 13, 2003
- 9 - 14No Strings AttachedFeb. 06, 2003
- 9 - 13No Good Deed Goes UnpunishedJan. 30, 2003
- 9 - 12
- 9 - 11A Little Help From My FriendsJan. 09, 2003
- 9 - 10HindsightDec. 12, 2002
- 9 - 9Next of KinDec. 05, 2002
- 9 - 8First SnowfallNov. 21, 2002
- 9 - 7Tell Me Where It HurtsNov. 14, 2002
- 9 - 6One Can Only Hope (a.k.a. The Lottery)Nov. 07, 2002
- 9 - 5A Hopeless WoundOct. 31, 2002
- 9 - 4Walk Like a Man (a.k.a. Don't Call Me Mikey)Oct. 17, 2002
- 9 - 3InsurrectionOct. 10, 2002
- 9 - 2Dead AgainOct. 03, 2002
- 9 - 1Chaos Theory (a.k.a. Unknown Origin)Sep. 26, 2002
