Ironside S07 E22 Riddle at 24,000

"«The chief of detectives!»"

A man dies of a heart attack whilst flying his plane, but the town medical examiner, a charmingly eccentric Cuban doctor, is convinced that there was foul play. By chance Ironside and Ed are on their way to visit and soon become involved in his investigations; but between pregnant ducks and volatile banana cocktails they have their work cut out as never before.