Gage is vastly overcharged on a credit-card purchase; Early suspects that a teenage accident victim (Audrey Landers) may be pregnant.
DeSoto and Gage find themselves surrounded by a raging fire as they attempt to rescue a fellow firefighter trapped beneath a tractor.
Kelly assaults Gage with water bombs between rescue calls that include a child in a burning tree house and a boy who swallowed poison.
An arrogant intern (Bobby Sherman) learns respect for paramedics after helping them rescue an oil-refinery worker trapped by flames.
DeSoto is teased when he tends to an injured widow's houseplants; Brackett operates to remove a live grenade from a man's abdomen.
Early undergoes open-heart surgery; the paramedics save one man trapped by a live power line and another (Dick Butkus) hit by a car.
Gage and DeSoto interrupt planning for their floor-polishing business to rescue an elderly hermit (Pat Buttram) trapped in a cave-in.