Ninja Kid 3 - The worst ninja ever

Nelson Kramer can't wait for the annual sports day. As a ninja, he should be able to win a few gold medals. But when something goes wrong with his grandma's new invention, his powers and those of his grandma are switched. While his grandma suddenly does fast backflips, Nelson is in pain all over and for the first time in his life he wants a cup of tea. This is not only a disaster for all the competitions, but also for the winners of the sports day, who are kidnapped. How is Nelson supposed to save them now without his ninja powers?
The Worst Ninja Ever is the third part in the hilarious Ninja Kid series by the popular Australian children's book author and comedian Anh Do.