A family faces danger after being reunited in a dystopian Madrid; Julia's attempts to rescue an abused minor results in grave consequences.

Hugo asks Julia to pose as her twin sister Sara in order to get the proper documentation to recover Marta; The police search for Merida's killer.

Alma continues her medical experiments on the children, despite serious repercussions. Julia grieves her loss. Álex makes a new friend.

A distraught Hugo and Julia confront Luis with what they discovered at the CIM, prompting Alma to quickly initiate her cover-up.

Alma celebrates her promotion with a large party, where Luis is warned about a secret government plan. Hugo makes a shocking discovery.

A grieving Luis does everything he can to help a pregnant woman espousing dire accusations about the government. Alma meets with the president.

Sergio's visit to Sector 2 unearths a stunning revelation. Enrique informs Alma that Luis is asking too many questions; so she confronts her husband.

Julia and Hugo begs Luis to meet Sergio's parents. When Marta recognizes some familiar faces, Álex and Emilia come up with a plan.

Manuela has a disturbing experience on the bus to work. The parents of the missing children continue to meet, while Emilia is threatened.

When Iván falls violently ill, Alma demands Alejo do whatever it takes to heal him. Fernando struggles to believe what Emilia says about his son.

The president asks Luis to give an important--but misleading--speech. With Hugo's help, Julia takes a risk in trying to save Manuela.

New Spain's citizens rise up in revolution as the virus continues to spread rapidly, infecting even the most unexpected of people.