Window washers rescued from scaffolding amid high winds

A bystander in Edmonton, Canada, on Friday caught the terrifying scene where two window washers clung for their lives to an out-of-control platform, as strong winds sent them flying through the air and crashing into the skyscraper they were working on.

"Good Morning America" highlighted the stomach-dropping clip on Monday morning.

The footage shows how the beam smashed through the nearby windows and even threw one of the washers — who was fortunately tethered and secure — off the platform, so he was left dangling 15-stories up. Screams from people witnessing the scene below can be heard throughout the video.

First responders were able to safely rescue the two workers with a bucket truck.