Carter faces a dilemma during a blood shortage when a serial rapist is in need of a transfusion. Carol and Weaver deliver the baby of a mentally challenged couple who fear a relative is going to take the child away. Benton turns down Corday's romantic offer. Weaver actively campaigns against Synergix. Doug comes to grips with his relationship with Carol and tells her that he'll wait for as long as she needs. Cynthia pours her heart out about her relationship with Mark to an uninterested Doug.

The ER must be evacuated when several workers from a chemical plant track benzene all over the floors. After Weaver is felled by the poison, Carter takes over, directing the evacuation. Dr. Corday does a ride-along with EMTs and rescues a man trapped under a building. Doug and Carol are trapped in the elevator with a sick child.