Watch the heroic rescue of a puppy from an icy river

This might be the most chilling video you'll see all day (no pun intended).

Two men heard a dog barking and yelping frantically. They followed the sounds and realized the poor pup was stuck in an icy river with nowhere to go.

Without thinking, one man jumps into the freezing water and swims after the dog. What happens next will shock you.

Watch the video above to watch the dramatic rescue.

Scroll through to see more dramatic rescues:

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