Rescue 911

Teenager attempts to jump across a canyon and falls (March 21, 1994. Goreville, Illinois); Woman goes into premature labor at home (January 8, 1994. San Antonio, Texas); Snorkeler attacked by great white shark (April 24, 1992. Campbell Island, New Zealand); Chihuahua chokes on marble (February 10, 1994. Buda, Texas)