When Grandpa moves in with Lenny and his new assistance dog, Lenny is delighted. After all, Grandpa used to be a water polo coach and Lenny is about to qualify for the water polo team. And Lenny loves dogs too. But when Grandpa and his ‘dog’ Justin arrive, he realises that something is wrong with Justin. Not only does he chew on every door frame and all the garden furniture, he also occupies Lenny's beloved training pool. Justin is a beaver, and he turns out to be the ultimate enemy! If Justin doesn't give up the pool, that's the end of Lenny's swimming training. He has to get rid of him... somehow.
A funny story full of comedy that is guaranteed to entertain the whole family!
