Hawaii 5-0

Can someone do me a favor? I'm debating whether or not to catch up with Hawaii 5-0. I really enjoyed the first season of the show, but the whole cheating/'I'm pregnant' plotline with Rachel and Danny makes me angry. Actually, that's an understatement. It makes me violently, irrationally angry to the point where I feel nauseous and want to hit things. (Yes, I have issues.) So, could someone please tell me how that whole situation plays out? Because I honestly want to like the show again and I even had hearts in my eyes for Rachel about 90% of the time, but I want to know what I'm getting into before I spend any time tracking down the episodes. Thanks!