Loved the episode. Some great character development for Buck, and incredible performance by Oliver Stark. I hope from now on, Buck understands how loved he is by everyone. He is more than a firefighter. He has such a positive impact on everyone around him. To me, he is the heart of the show. He is a good friend, a good brother and overall a good person. He has always been my favorite character and i love to see him in the spotlight, specially when it doesn't involve annoying & poorly written love interests. The sperm donor storyline has also been all over the place. And personally, i don't vibe with the whole "forgive your terrible parents" message. I fully believe it's posible to heal from childhood trauma without forgiving and excusing the parents who caused it. Specially in this case where they didn't really atone or apologize for their mistakes. The Buckley's and Chimney's dad can go to hell imho. It made very little sense for them to suddenly be so reasonable and understanding. Other than that the episode was great. 9.5/10.