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A terrifying video shows a worker at an apartment complex in Springfield, Missouri, saving a dog after the pup's leash gets caught in an elevator door.

In the video, the dog's owner walks in the elevator, but the dog is distracted and doesn't make it inside before the doors close.

Second later, the leash tightens and the poor pooch flies into the air, slamming into the closed doors.

Brian Ussery, a maintenance supervisor at the apartment complex, was walking through a door in the lobby when he saw the dog flying through the air.

The video, which Ussery posted to his Facebook page, shows him running the dog, grabbing her and breaking the leash just in the nick of time.

"I was actually in the middle of leaving a voicemail when it happened," Ussery told KTLA. "I would hate to know what would have happened if I wasn't able to break that leash before she got to the top again."

Luckily, the dog wasn't hurt and was reunited with her owner a short time later.

"When I first took the video, it was just to show my fiancée. We are both huge dog lovers," Ussery said. "Never in a million years did I expect it to be shared and viewed so many times. I posted it as a warning about leashes and elevators."

Watch the raw video of the scary incident below.

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