What happened between Young Kate and Marc?
This Is Us Season 4 Episode 13 finally shed light on one of the biggest mysteries on the series.
However, another mystery quicky took its place when the answers finally came out.
Meanwhile, Kate found herself at odds with those closest to her in the present-day storyline.
This paved the way for her to find strength in unexpected places.
Did she manage to reconnect with Kevin and Randall by the end of it?
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.