One little boy got more than he bargained for when his uncle took him on a rollercoaster for the first time leaving him utterly terrified.

In the clip, filmed at the Lagoon Amusement Park in Davis County, Utah, the uncle can be seen sitting next to his nephew at the front of a rollercoaster.

As the ride begins, he holds the camera up, and the woman behind him points forward at the youngster as if to say watch out for his reaction.

At first the man's nephew appears to be doing fine, if acting a little quiet and staring straight ahead

But after the first peak the boy's expressions escalate as his terror increases

At first the youngster seemed fine, and can be seen just sitting there staring straight forward without saying anything.

Quickly his reactions escalate, pulling a grimace as the ride goes down the first peak before desperately clinging on to his uncle's shirt.

His uncle tries to calm him down, but all the little boy can do is cling on to him for dear life and close his eyes.

At the end of the ride his uncle turns to him and asks if he would like another ride, to which the petrified little boy shakes his head firmly and says 'no'.

The video was filmed on June 15.

The boy's uncle is left roaring with laughter at his reaction to the ride at the Lagoon Amusement Park in Davis County, Utah