Time Warp Trio - Series 1 - The Caveman Catastrophe

Animation series about a boy who is given a magical book for his birthday that acts as a time travelling device. When the kids warp back to the Stone Age, they decipher some cave paintings and find The Book in the camp of the Neanderthals. But when they trade Jodie's binoculars to get it back, something goes wacky and the kids are suddenly a lot hairier than usual.