The plays revolves around Hamm, an aged master, who is blind and can't stand up, and his servant Clov, who can't sit down. They exist in a tiny house by the sea, although the dialogue suggests that there is no exterior to the house beyond stage left -- no sea, no sun, no clouds. The two characters, mutually dependent, have been fighting for years, and continue to do so, as the play progresses. Clov always wants to leave, but never seems to be able. Also present are Hamm's legless parents, Nagg and Nell, who live in rubbish bins, upstage, and argue.
Note: While Endgame was originally written in French, it has been translated into English by Beckett, himself.