How do the travelers/couriers know what universe to take the films to?

In episode 3.01 (More Than Ever, We Care About You) of Amazon Prime Video TV series, The Man in the High Castle, the titular character, also known as Abendsen Hawthorn, and his wife Caroline, explain to Juliana (and the audience) a bit of his origin story for how he became 'The Man in the High Castle'.

CAROLINE: Word got around that Hawthorne was some sort of prophet of the Resistance, which he wasn't.

ABENDSEN: No. Not at first. That's because the real films started coming to our door.

CAROLINE: Travelers like Trudy would bring them from their worlds, - and then, the Resistance would get them to us.

Perhaps it was stated later in the season and I missed it or maybe it hasn't been answered yet, but my question is,

How did the travelers/couriers know what universe to take the films to?

As a follow up question, do we know if they have a much of a choice to where they can travel to?

(And yes I'm aware that they can only travel to a universe where their

counterparts have died.)

I'm just looking for an answer beyond that.

plot-explanation the-man-in-the-high-castle

Best Answer

After watching the whole series it seems each courier would come and go to the same 2 universes: one where the Nazis won and the other where they lost.

Although Abendsen and the Nazis knew of the existence of other universes, we're not shown any evidence that the couriers have any choice where to travel. Juliana and Tagomi are shown always going to the same parallel worlds (not the same, since Tagomi's parallel universe has another Juliana in it).