Noah and his sister Ava have just finished school and are on their way to their yearly summer camping trip to Lake Liraz with their parents. Suddenly, their dad accidentally hits something with the car, and when he walks back to check, he ends up getting his hand caught in a wolf trap! Since they all left their phones at home, Noah and Ava set out to find help. They end up in a mysterious cave at night and admire the beautiful display of ancient markings all over the walls. Ava then discovers an odd-looking gadget, and when she picks it up, they are transported back to caveman times!
