As the series begins, Isabel and her brothers' lives are turned upside down when they are forced into the hostile environment of the court.

The drama and intrigue continue as the nobles begin to put their plot to dethrone Isabel's half-brother Enrique into action.

As the Civil War brings chaos and anarchy to Castille, Isabel learns that her half-brother Enrique has promised her to a man she doesn't love

Tragedy strikes Isabel's family, forcing her to finally make her choice. Should she obey Enrique or rise against him?

Isabel seeks comfort for the death of her brother in his friend Gonzalo. Meanwhile, the Queen receives news that forces her to flee the court.

Empowered by a discovery about her half-brother, Isabel tries to cut a deal with Enrique. However, the king also has a plan up his sleeve.

Isabel deceives King Enrique over her ambitions to marry. But while she may be able to fool her brother, nothing gets past Pacheco.

Disguised as a servant, Fernando begins his secret journey to meet Isabel at the altar. Forced to take perilous backroads, his route is fraught with terrible dangers.

As the wedding approaches, Isabel and Fernando meet for the first time. Bad news throws their big day into jeopardy, leaving King Enrique overjoyed.

Isabel and Fernando welcome a child into the world. But their happiness doesn't last for long as Pacheco sends his troops to capture them.

Pacheco persecutes all those who chose to support Isabel and Fernando. Plus, with her marriage already under strain, Isabel overhears a secret about her husband.

As the Pope dies and a new holyman takes his place. King Juan of Aragon seizes his chance to lay the problems surrounding Isabel and Fernando's papal bull to rest.

A sudden death and a twist of events sees King Enrique flee to Madrid. Later, Castile prepares to crown a new Queen.