I've watched S1 and 2 several times since Dark first aired, I will tell you, S3 eps 1-4 had me all messed up trying to keep up lol but by the end of ep5 I was finally up to speed. Eps 5-8 wrap up everything cohesively and beautifully!! I cannot believe how perfectly it all ends, imo. Have fun and savor this last season! Thanks!