[first lines]
Lt. Rod Blake: Oh, hello. I'm Rod Blake, chief investigator for the Nevada state troopers. Sometimes cases take nothing but paperwork and hours spent at a desk. Then there are times when a night's sleep is something to look forward to like next summer's vacation. Now keeping fit is part of every law officer's job. I spent some time recently in a modern, fully-equiped gymnasium. I got lots of exercise, but it wasn't to keep me in shape - it was to save a life. That life happened to be my own. You'll hear about it in a story called, "Joker's Dead".