EXO's Travel the World on a Ladder Season 1 | EXO-CBX (Chen, Baekhyun, Xiumin) spend their holiday in Japan with the outrageous 'ladder' to help decide their situations. EXO's Travel the World on a Ladder Season 1 | EXO-CBX (Chen, Baekhyun, Xiumin) spend their holiday in Japan with the outrageous 'ladder' to help decide their situations.