Jackie Chan Adventures Season 4 Episode 5 The Demon Behind Episode Title:The Demon Behind.Episode Description:Jackie and the gang gets the next Oni mask and also found the archive of the demons. The mask that they found happends to have a full chapter on the mask so Jade asks lets put the talisman on the mask and question it? Somehow the mask jumps on Tohru's behind and on to another and another until it finally reaches Finn's car. Tarakudo asks everyone to find it because it has found its way out. So finn takes a walk to his car and sits on the mask. Long story short, they capture Tohru and the mask forces him to put it on his face so then Jackie saves the day once again.