It happened in Bakersfield, Calif., where a 4-year-old boy was riding his bike in front of his house when he was attacked by a dog.

The Labrador-Chow mix grabbed the boy's leg, knocking him to the ground, and started dragging him away. That's when the family's cat came to the rescue. It shooed the dog away from the boy and chased the dog off the property.

The video was taken from a pair of security cameras. Just amazing.

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