Rudolf Rassendyll takes an impulsive visit to Ruritania to witness the coronation of the new monarch; things take an unexpected turn and Rudolf must face an extraordinary challenge.

Rudolf Rassendyll becomes both cousin and double to King Rudolf of Ruritania; after the King is drugged by his enemies, Rudolf is asked to take his place.

Rudolf Rassendyll succeeds in standing-in for King Rudolf at his coronation; a terrible discovery awaits him at the hunting lodge.

Rudolf goes to a rendezvous with Antoinette de Mauban, but Sapt is convinced that their meeting is a trap.

When Rudolf refuses Rupert of Hentzau's proposition to betray his friends and keep the throne, Rupert tries to kill him.

Rudolf sets off for Zenda castle with Colonel Sapt's small force in an attempt to help rescue the King.