Here's the series' premise as provided by IMDB.com:
"Multinational immigrants traveling from the old continent to the new encounter a nightmarish riddle aboard a second ship adrift on the open sea."
For those who missed Dark, it's honestly a hard program to pen an effective synopsis for. Essentially, it's this massive, sprawling, time travel story built around a town pretty much tied to a very unique rip in celestial fabric, giving residents a chance to dabble in the past and the future but only at certain internals. (Like I said, I'm trying not to give anything away here, and it's tough.) It presents the audience with that grand 'would you go back and change something if you could' scenario and then shows then just how easily you may've mucked everything up for you, your neighbors, and the world-at-large beyond in ways you didn't possibly conceive. I won't belabor it more than that, other than to say that the first two seasons are jaw-droppingly good; its third and final season, I thought, kinda/sorta strayed from the original formula in ways I didn't care for as much, though the showrunners still managed to tie it all up far more successfully than I believe other shows' endgames have played out. It's definitely worth the time.
In any event, the creative folks are now up-and-running on something else ... and this one looks interesting ... so I'm not gonna spoil it with dabbling in puff pieces. I'll save my investment for the actual series, and I'm hoping to be amply rewarded.
Trailer is below. You know what to do.