Flaín is wants the man who upset the conspiracy. Rodrigo knows it was his grandson, which is why he intends to send him off to Vivar. On the other hand, Ruy resists leaving the King at the expense of Flaín, as he sees the only solution being to end the Count of León’s life. When it looks like everything is about to kick off, the Navarre troops turn up at the border and declare war against León.

The Castile tropos with Sancho and Ruy fight an outnumbered battle against the Aragonese. When all seems lost, the outcome seems totally unexpected. In León, Fernando discovered who was conspiring against him.

Sancho has decided to execute his brother Alfonso and the rest of Leonese nobles who support him, including Orduño. As soon as Alfonso is dead, Sancho will be crowned King of Leon, and as a reward for his services, he offers Ruy the title of Count when Orduño is executed. He can finally get everything he has dreamed of: nobility, lands… and Jimena. But there is something Ruy isn’t counting on.