Dr Knowles and Professor McCork ask the question 'Is every human being unique?' We learn how the instruction manual responsible for making humans is also responsible for making up all living things and we find out something awesome about identical twins. Meanwhile backstage, Colin is overworked trying to finish chores for a very demanding Ms Hucklebuck and Professor McCork is attempting to create an army of rubber duckies using his new 3D printer. What could possibly go wrong?