Ernesto receives a fax from 1553. For an unknown reason, History has been changed and Luís Vaz de Camões, one of Portugal's greatest poets, may die before writing his masterpiece, "Os Lusíadas".
Irene remembers the moment she was recruited by Armando Névoa to become an agent at Ministério do Tempo service. Meanwhile, her mentor puts in action a terrible plan of revenge.
The patrol team from Ministério do Tempo is sent back to 1940 during the production of the movie "O Pai Tirano" to unveil the reason why a tablet was drawn in the propaganda's poster. Tiago keeps dreaming about Mariana's death.
Susana ignores procedure when she orders that Irene be brought back from 1918 after catching the Spanish Flu, putting the modern day Ministry HQ at risk.