Homework, there should be an app for it. This time Henry really is set to make a fortune, and all because he does his homework. Or does he?.

Peter narrates Henry's trip to the "Brain Box of the Year" competition.

For the uninitiated, Henry is Horrid. He doesn’t like school, or his suck-up younger brother, Perfect Peter. He wants to make a lot of mess, shirk his homework and rock out with his band. He hates ...

Henry begs Dad for a new mobile phone, while Peter's DJ gift from Great-Aunt Greta has gone too far.