简介: Agroupoftiredcommutershavecaughtthelasttrainhome,,;withdrawnmotherYiLing,hersonLucas,andstudentJanice,areforcedtobandtogetherandsurvivethenight,`,hermaternalinstinctsaretested,andJanice`,theengineersdotheirbesttomakesenseofthesituationandrescuethesurvivors.