Fel y tynnai'r Ail Rydfel Byd i'w therfyn, a byddinoedd y Sofietiaid yn dylifo i mewn Hwngari, gan yrru'r Nats??aid o'u blaenau ymddiriedwyd i offeiriad ifanc, y Tad Marc Towler, y dasg fawr o geisio diogelu rhai o geiriau mwyaf cysegredig yr Eglwys Gatholig yn Hwngari Wrth geisio cyflawni'r dasg honno, mae'n cwrdd ??g athrawes ifanc, Ann Zergov, a datblyga perthynas glos iawn rhyngddynt wrth geisio diogelu'r creiriau [As the Second World War pulls to a close, and the Soviet armies pour into Hungary pushing the Nazis in front of them, the young Priest, Father Marc Towler, is entrusted with the grand task of trying to protect some of the most sacred relics of the Hungarian Catholic Church In trying to complete this task he meets a young teacher, Ann Zergov, and a very close relationship develops between them in trying to protect the relics]