The Big Three's fortieth birthday is fast approaching. On Madison's suggestion, she, Kevin, Kate, Toby and Jack rent a trailer and drive to the cabin for the milestone, the cabin where Rebecca and Miguel have been living since the start of the COVID-19 pandemic. With the trial in St. Louis placed on hold due to the pandemic, Rebecca has thrived at the cabin, she and Miguel who have set up a system to deal with any of her possible memory lapses if/when they occur if she is without him. The one person not joining this celebration is Randall who has not talked meaningfully to Kevin since their fallout earlier in the year. As such, Randall will celebrate his fortieth birthday quietly at home with his family, that day which will also mark Déjà and Malik's first date first anniversary. With the birthday milestone, flashbacks are shown of the immediate lead ups to the Big Three's own births, Randall's biological mother, Laurel, who is only a footnote in his life. Also presented are the discussions of future Pearsons, Kevin and Madison who had earlier in the year decided to have and raise their twins together, and Kate and Toby who are anxiously awaiting any news about their adoption application.
—Huggo