Survival of the Fittest is the 17th episode of the seventh season of "E.R."
Plot[]
NBC Description[]
BENTON SUSPECTS BIAS AFTER A SHOOTING IN THE ER: Dr. Benton (Eriq La Salle) is a horrified bystander as the elderly black patient (guest star Adrian Ricard) he is treating grabs a cop's gun with tragic results.
Dr. Carter (Noah Wyle), who is rethinking his relationship with Rena (guest star Lourdes Benedicto) teams up with Abby (Maura Tierney) to treat a class of seventh graders who become sick on their bus from mysterious toxic fumes.
Meanwhile, Dr. Greene (Anthony Edwards) learns the results of his review; and Dr. Corday (Alex Kingston) is determined to prove to Dr. Romano (Paul McCrane) that she can still pull long hours in the O.R.
Laura Innes, Goran Visnjic, Michael Michele, Erik Palladino and Ming-Na also star.