A new trainee appears to be lacking in confidence; a bookcase falls on an elderly gentleman searching for a book; a baseball player is injured; an ambulance is hit by a car; a boy's chemistry set explodes in his face; students play a practical joke on a sleeping man; a man is injured at a junkyard.

Roy and John buy an old fire engine, and Station 51 gets a new engine. A woman overdoses on LSD and Roy tries to talk her down, leading the two paramedics on a chase to the top of a building. Brackett treats a resilient gunshot victim. A politician suffers a heart attack and the station responds to a warehouse fire.