As the Campton family set out on their annual summer holiday to Lake Liraz; unfortunate circumstances arise when father's hand gets trapped inside a wolf trap. Brother and sister, Noah and Ava come to the rescue as their mother instructs them to seek out help. While out on their mission, the siblings stumble upon a mysterious cave with an odd rectangular-shaped drawing on the wall that transports them back to the cavemen times this is where their real summer holiday adventure begins! Back in time, Noah and Ava help free 'Maca' the macaque monkey by playing funny tricks on his slave owners, the caveman and cavewoman with their newly discovered gimmicky gadget; teaching them a lesson or two on how to treat others right.