The game sets you in a terrain wherein you must maneuver your way to get into your destination. The game is hard since you need to drive your way into mountain and cliff to get into your destination.
Anyway, you need to ensure that you get to where you want safely and not fall down on your back. Else, the truck will be separated from its wheels and explode. The game got a timer, so it would be wise to head on your way as soon as possible and finish the game. When you do get into your destination, there would be another terrain that you must pass.