Lewis clashes with new chief resident Kerry Weaver, who antagonizes everyone with her toughness. Lewis then must remove her infant niece, Susie, from hospital day care to treat her for a fever. She is surprised to learn that her sister Chloe (recurring guest star KATHLEEN WILHOITE), the child's mother, secretly terminated her computer studies.

While caring for a young bank robber who got hit by a car while fleeing the crime scene, Lewis opens a bag of stolen money which is rigged to explode green dye all over.

Ross treats a 9-year-old pyromaniac, Byron (JAMESON BALTES), for burns, leaving him to be psychologically evaluated. But the boy sets the hospital bed on fire, angering Weaver, who feels Ross should have let the boy leave with his mother instead.

Carter struggles to regain Benton's good will and impress Harper. Benton accidentally meets Jeanie's husband and later tells her that she should inform him of their love affair. Greene laments over his long commute home to Milwaukee.

While Hathaway rides with paramedics to qualify for certification, she meets a paramedic with a bad attitude, "Shep" Shepherd (recurring guest star RON ELDARD), but soon gets to know and like him.