After assisting her father in retaking his throne, Cleopatra has resigned as Egypt's co-ruler. However he soon passes away and Cleopatra does not get to reign as sole ruler as her brother Ptolemy XIII is made her co-ruler, and technically husband. Tensions rise as Cleopatra and Pothinus (the power behind Ptolemy XIII's throne) seek to claim full co trol of Egypt. Full civil war erupts and Cleopatra is exiled, but as Pompey flees to Egypt, a momentous decision is made that turns the tide back in her favour. Season 2 explores the early years of Cleopatra's reign and her struggle for sole rulership of Egypt against her brother.