Различные ходы 5 сезон 6 серия — Эпизод 6

A substitute teacher makes life hard for Arnold and Dudley, so they try to make things difficult for him in return. When one of their pranks leads to Arnold getting hit by accident, they go to the principal and tell him that it was done on purpose, which gets the teacher in trouble and nearly gets him fired until Arnold and Dudley come clean about what really happened.