In only a matter of days Volume 5 will commence and I honestly think this will be the best series yet. Just one look at this trailer and the fans can see a huge jump in animation with the characters continuing down the darker path started at the end of season 3.  I have spent the past few weeks hyping this series up with reasons you should watch and pushing its new board game, but honestly all that means nothing in the wake of this trailer which perfectly illustrates why this is one of the best and possibly most underrated shows to watch right now.