What happened with Kate's gastric-bypass surgery?
That was addressed on This Is Us Season 1 Episode 13 when her surgery took a shocking turn.
Are you sure you're prepared to find out the answer to this question?
Meanwhile, elsewhere on this smash hit NBC drama series, Randall struggled to make time for William, but how did William feel about it?
Also, Rebecca and Jack became overwhelmed and decided to throw three separate birthday parties for the kids, but how did they all turn out?
Use the video above to watch This Is Us online to get caught up with the latest developments for the characters.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.