Ministério do Tempo
A warrior from the XVI century, the first female university student from the XIX century and a nurse from the XXI century, join a secret agency to prevent people to change the Portuguese history by using time-traveling doors

We're in 1940, Francisco e Roberto, communists, try to escape Nazi Officers in the French Alps. They are caught by the Germans. Roberto is killed immediately. Francisco, in a desperate act of survival, claims to have relevant information for Himmler: he knows how to travel in time!