It is the twentieth birthday of Irina, the youngest of the sisters mentioned in the play's title. It is also the one year anniversary of the death of their father, Colonel Prozorov, who moved his family there from Moscow eleven years earlier. Irina and her older sisters, Olga and Masha, receive visitors, members of the military battery that is assigned to the town. The sisters discuss how bored they are with the town, how they long to move back to Moscow, and their brother Andrei, who will probably become a university professor. Olga, who is twenty-eight and the oldest sister, expresses interest in the new lieutenant colonel who has been assigned to the town, Vershinin, but is told that he is married, with two children. Chebutykin, the drunken old doctor who had been in love with the girls mother, gives Irina a silver samovar for her birt.....