Why do you think Helge is Noah’s child? I don’t recall any hints to that, nor does Noah act like it (and certainly not like he acts towards Charlotte, given how he is doing everything for love of Charlotte I doubt he would treat his son as he treats Helge).

The other man and woman in Sic Mundus are Magnus (Adam calls him by name early in S2, also they did a good job casting as he has the same face) and Franziska (from hair color, I don’t think she is called by name).

As far as Adam/Jonas/Claudia goals – they definitely can’t be to save everyone or keep Winden intact. At best they could end the loop, deleting everyone and everything created by the loop, only leaving the few people that existed before the loop (and possibly averting the apocalypse that f’d the planet). Someone who decides that isn’t possible may decide to end time/space entirely just to halt the madness (if that’s an option). And then there’s the possibility of the multiverse, so instead of a loop it’s more like a time spiral across different universes, which seems likely by Martha’s last appearance; in which case they might be inadvertently working towards a final “clean” universe scenario which ends the time cycle, and may leave everyone existing if they get seeded by prior versions from other universes (although Jonas still can’t be with Martha because incest).

I think “Time-Multiverse Agent Martha” would have looked much better/more authentic with an least slightly older actress rather than the same teen Martha actress.

Poor fkn Helge though, he’s the most depressing part of the show. What a life… how did he even have a son?
Everyone else is a whiner.

10/10 best show ever though.