Almost two years after a devastating loss, the Duke of Castamar hosts a big party. An agoraphobic Clara is forced to prove herself at her new job.

When the king goes missing during the party, Diego and his friends search for him. Meanwhile, Clara makes an unexpected discovery she must keep secret.

Amelia has shocking news for Enrique. The queen asks Melquíades to covertly find an important document. A fire threatens Rosalia's future at Castamar.

Diego helps Clara search for evidence of her condemned father's innocence. Enrique plots to frame Francisco. Amelia asks Elisa for a favor.

The day of Diego and Amelia's wedding — and Clara's father's execution — brings multiple last-minute surprises for everyone at Castamar.