Hardly the most interesting story you could come up with for the Fourteenth Doctor, in rare form this short forms a two-parter with the follow up which is hardly any better but it at least is more interesting and has a thematic tie-in with the Fourteenth Doctor having David Tennant's face. This opener is really just one buildup scene with the Doctor running from room to room seeing a bunch of different aliens being tortured in order to keep a spaceship running.