The Amazon Prime series zooms in on the life story of Juliana Crane (Alexa Davalos), the lone time traveler blessed with the ability to hop in and out of different historical periods.

This special skill has been the subject of many heated debates among fans, some of whom vouch that what she does is best classified as time traveling, while others insisting on the notion that it is, in fact, moving freely between parallel universes. 

The difference between the two is significant: Juliana is not only able to experience different periods and witness firsthand what's taking place, but she is granted the ability to exercise power over how the different segments unfold, alternating the course of history with her own actions. 

Time traveling – or universe hopping, for lack of better term – plays a vital role in the unfolding of the narrative. 

As the last representative of moral good in a rotten world, Juliana uses her special powers to take up the fight against the Nazis and help the American people to win finally back their independence. 

In a chilling scene, we watch the bruised, blood-covered Juliana will herself out of a high-security prison to avoid being interrogated by the Nazi leader, John Smith (Rufus Sewell), and into a flower bed found somewhere in the idyllic-looking suburbs. 

On another occasion, she provides guidance and intel to the cells that make up the resistance movement.