A cat named Tara rescues a young boy from a vicious dog attack. Plus, K9 Chief puts his life on the line pursuing an armed suspect. And a German Shepherd named Sadie comes to her owner's aid during a medical emergency.

A Great Dane fights off an intruder during a home invasion. Also, a pet bird named Dylan saves its owners from a nearly fatal house fire. A Border Collie rescues a Chihuahua from an oncoming car, and a bomb-sniffing military K-9 named Lucca is nearly blown up trying to protect U.S. soldiers.