Watch this 45 minute movie.
It's an old anime movie that was recommended to me. The g-rating might put you off but it's a total mind****.
It was supposed to be for kids but it's nothing like that at all.
It's about a lamb who is told by his mom not go over the fence of his farm or the wolves would catch him. One night a wolf comes and kills his mom. And he swears to kill the wolf by any means necessary.