The train passes through a loose zone where everyone becomes loose and lazy and otherwise irresponsible. Tetsuro gets thrown out of the train somehow and the Conductor and the train are too lazy to look for him. Maetel is virtually unaffected. Tetsuro then ends up in a giant trash heap where he is chased by a monster made of trash. Eventually Maetel rescues Tetsuro on an uninhabited garbage planet. When the 999 leaves a much larger garbage monster attacks it but then collapses. (thetvdb.com)