Avalon - svyatilische, sokrytoe ot glaz prostyh smertnyh. Otsyuda v chas, temnyy dlya Britanii, speshit k svoey sestre Verhovnaya zhritsa Viviana - soobschit, chto ta dolzhna stat materyu novogo korolya. Yunaya Morgeyna znaet - ee mladshiy brat obedinit pod svoey rukoy yazychnikov i hristian. A ona sama obeschana Avalonu i Velikoy Materi. Ih sudby - i sudba ih rodiny - stanovyatsya krasochnym vitrazhom, polnym lyubvi i boli, dolga i chuda.