A terrifying car accident is about to unfold right before your eyes in this cell phone video.

It was captured Friday morning moments before a four-car pile-up on Interstate 5 in Southern California.

Here you can see a white truck cruising down the freeway, driving the wrong way.

Now, watch as the truck suddenly slams right into a concrete barrier.

Next, authorities say a Land Rover T-boned the truck, splitting it in half, before a tractor-trailer smashed the truck's cab. The Land Rover was then hit by a mini-van.

Amazingly, no one was seriously hurt.