A careless worker sparks an explosive fire in a high-rise building. Station 110 leads a full alarm response, assisted by Squad 51. A triage team from Rampart Hospital, led by Dr. Brackett, sets up in a nearby garage. Several workmen and two women - including the fiancee of a paramedic - remain trapped on the 16th floor. A Coast Guard helicopter assists in rooftop evacuation; Dixie and Dr. Early ta