For as long as he can remember, it has been Galileo's dream to become a police horse. But when his dream comes true, he soon realises he's not there to solve crimes, but merely as a vehicle to carry around the 'real' human detectives. When Galileo witnesses a crime, he decides to take matters into his own hands. He has a lot to learn, but each crime he solves is sure to take him one step closer to becoming a real detective ...