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A dog heroically led a stranger to two unconscious people in need of help in Pittsburgh on July 29

The dog repeatedly ran up to and barked at Gary Thynes to get his attention, prompting the man to follow the animal to the site of the emergency

Thynes encountered a man and woman, both "unresponsive," in a "tent encampment," and quickly called 911

A man is detailing his encounter with a real-life Lassie.

Gary Thynes was playing with his dog at a park in Pittsburgh's North Shore neighborhood on Tuesday, July 29, when another dog approached him, seemingly attempting to get his attention.

"He would come just close enough for me to be out of arm's reach, and then he would bark, turn around, run a few steps, turn around, bark again," Thynes recounted to ABC affiliate WTAE . "

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