The Pearsons gather to celebrate their 40th birthday while musing about the day they were born.

Kevin and Madison navigate their engagement as Kate and Toby take a big step in their adoption journey. Jack and Rebecca brace for puberty.

Malik shadows Randall at work. Kevin struggles to connect with his new movie director. Jack and Rebecca struggle to sleep train their babies.

Kate confronts her past. Randall's brush with viral fame leads to an unexpected discovery. Kevin debates the best path for his future.

Randall uncovers new truths about his past.

The Pearsons navigate huge family milestones together, from a distance.

A series of car rides propels the Pearson's towards new stages of their lives.

Beth navigates qualms with her mother. Kevin and Kate bring their families together for dinner.

Kevin and Madison get an unexpected guest.

Jack and Miguel bond. Kevin and Madison navigate challenges. Randall seeks out a new kind of support network.

Kevin visits Randall in Philadelphia.

Beth navigates her career path. Kate and Toby face unexpected issues. A run in with someone from his past gives Kevin pause.

Kevin and Madison partake in their respective bachelor and bachelorette parties.

The family gathers for Kevin and Madison's wedding.