; Act 1 Vasili returns to a Polish monastery on the Don and greets the Abbot who raised him. He recounts how he was helped by Vanda, cousin of the Polish King, and fell in love with Marina. A gypsy troupe come and go, Marina has fled her father and an arranged marriage to the Count of Lusatia by disguising herself as one of them. She and Vasili recognise each other and reaffirm their love. The Count of Lusatia arrives and tells the Abbot that the boy Vasili is in fact Dimitri, youngest son of Ivan IV and Tsar of Russia. The Count comes upon Dimitri and Marina embracing. ; Act 2 Vanda and Lusatia conspire to get Dimitri to leave Marina and marry Vanda, making her Tsarina. When the King of Poland arrives surrounded by his court, Vanda asks him to grant her hand to Dimitri. Dimirti, terrified, is told by Lusatia that he has no other option. ; Act 3 Scene 1: Marina reveals to Marpha that her son Dimitri is alive. In an interview with the Patriarch of Moscow, Job, Marpha refuses to either reject or accept the young man as her son. Scene 2: News arrives at Dimitri's camp outside Moscow that the citizenry have executed his rival, Boris Godunov. Lusatia recognises Vanda, who has followed Dimitri disguised as a soldier and realises that he does not love her. ; Act 4 Scene 1: Lusatia tells Dimitri that he murdered the real Dimitri many years before. Dimitri stabs him and orders his body be carried out as Marpha arrives and recognises both Lusatia as her son's kidnapper and Dimitri as her son. Scene 2: The Polish troops and the Moscovite Boyars acclaim Dimitri as their leader. Vanda swears revenge for her spurned affections. ; Act 5 Vanda has nursed Lusatia back to health. Seeing Dimitri and Marina on a balcony the night before their coronation in Moscow, she plots with Lusatia. The Coronation procession is stopped by Patriarch Job, who demands that Marpha swear that Dimitri is her son. She hesitates, but just as she sees Lusatia taking out a pistol from a balcony above she is about to swear but Dimitri is mortally wounded and dies surrounded by Marina and Marpha, asking along with the Moscovites for God to reveal the truth.
