ThisepisodefindstheDoctor(JodieWhittaker),Yaz(MandipGill)andDan(JohnBishop)in19thcenturyChina,whereasmallcoastalvillageisunderthreat–fromboththefearsomepiratequeenMadameChing(CrystalYu)andamonstrousalienforcewhichsheunwittinglyunleashesccc WilltheDoctor,YazandDanemergefromthisswashbucklingbattlewiththeSeaDevilstosavetheplanet?