The following video is as heart-wrenching as it is moving and inspiring. We don't want too give anything away, but the video, titled "The man and the dog", perfectly encapsulates why dog is man's best friend.
Make sure to watch through to the very end for a surprise twist that's well worth the wait. The video quickly went viral after being uploaded to YouTube, having now been viewed well over 7 million times. It was created, in part, by award-winning director Rodrigo Garcia-Saiz.