MammothisacomedyaboutmanofhistimeTonyMammoth(MikeBubbins),aPEteacherwhoispresumedtohavebeenkilledinanavalancheonaschooltripin1979.Whenhisbodyisdiscovereddecadeslaterinthepresentday,MammothismiraculouslybroughtbackfromthedeadandhastotryandrebuildhislifeasaPEteacherinmoderndayCardiff.