Jack and Rebecca get in over their heads when they decide to throw Kate, Kevin and Randall three separate parties for their 10th birthday. Randall struggles to make time for William as things intensify at the office. Kevin makes a major decision in his romantic life. Kate's gastric bypass journey takes an unexpected turn.

Randall adjusts to the foster system. Kate and Toby take the next step in their relationship. Kevin visits Sophie in New York. Jack and Rebecca finalize Randall's adoption.

The Pearsons come together under unexpected circumstances. Meanwhile, Jack surprises the family with a summer vacation.

The Pearson family comes together to support Kevin at his movie premiere. The teenage Big Three confront college decisions in the wake of Jack's death. Kate and Toby start IVF.

Kate and Toby try to keep busy while waiting for big news. Randall embarks on a new journey. Kevin meets someone from his father's past.

Rebecca and the Big Three reckon with secrets Jack kept from them. Jack's Vietnam story continues to be revealed.

Beth and Randall adjust to life in Philadelphia. Jack and Rebecca take the Big Three to the pool.

Kevin reflects on his past. Rebecca visits Randall at college. Beth's mom comes to visit. Kate and Toby share new experiences with Baby Jack.

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

Rebecca and Miguel's anniversary barbecue does not go as planned.

The Big Three makes a plan for Rebecca.