This Is Us. Season 5, Episode 1 and 2. 'Forty: Part One and Forty: Part Two'
Season 5 kicks off as the Big Three’s 40th birthday is fast approaching. Everyone, except Randall, heads to the cabin for the milestone. Flashbacks show the immediate lead ups to the Big Three’s births and Randall’s biological mother.
NBC
Air date: October 27, 2020
Previous episode: Strangers: Part Two (S4:E18)
Next episode: Changes (E3)