ER
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.

Season 9 · Episode 1 ·
Chaos Theory
Dr. Carter, Abby and other staff of the ER are quarantined as the CDC investigate a mysterious, deadly outbreak.
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Episode 1 of season 9 of ER: “Chaos Theory”. Aired 2002-09-26. Watch it online free on ZapFlix.