Christian takes us from the beginning, more precisely the big bang, to the creation of our solar system, past the beginning of life, the origin of man, all the way to the Greeks, philosophers and the birth of the West. How can nothing become everything? And how can a weak monkey go from being at the bottom of the food chain, starting on all fours, to standing upright on two legs at the top of the heap? We've got 13.8 billion years to go, so buckle up, we're in a hurry!

• Comedy