Rebecca helps Kate and Toby care for baby Jack; Zoe and Kevin look after Tess and Annie; Randall and Beth consider how to move forward.

A history of Beth and Randall through the ages.

Beth and Randall adjust to their new normal; Kate and Toby spend time with baby Jack.

Tensions run high as the Pearsons await news about Kate's pregnancy.

Kevin keeps a secret from Zoe. Randall gets unexpected news about Deja. In the past, the Big Three graduate from High School.

Beth's trip home to care for her mother sparks an unexpected realization.

Kevin attempts to help Nicky. Randall and Kate reflect on differing memories of their childhood.

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

Randall's campaign comes to a close. Kevin meets someone from Zoe's past. Kate and Toby get ready for the baby.

Kevin arrives at the Ville his father served in. Kate pursues a new opportunity. Randall debates Councilman Solomon Brown. In the past, Jack struggles to get through to his brother.

The Pearsons have an unconventional Thanksgiving dinner; in the past, Jack, Rebecca and the Big Three spend Thanksgiving with Miguel.

Kevin and Zoe land in Vietnam; in the past, Jack and Rebecca take a road trip to Los Angeles; Jack's war story continues to be revealed.

Kate struggles with Toby's depression. Randall makes time for Kevin, who obsesses about Jack's past.

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.

A young Jack makes a decision that will impact the course of his life.

The Pearsons rally around Kate as she undergoes a medical procedure.

The Pearsons gather to support Kevin at his movie premiere. The teenage Big Three make college decisions.

Randall, Kate and Kevin find themselves on new paths as they each celebrate their 38th birthday.

Cast and creators celebrate "This Is Us," with an exclusive behind-the-scenes look at Season 3