Rebecca goes into an early labor; Randall finds his biological father; Kevin faces a personal and professional crisis; Kate finds herself at a low point.

Jack and Rebecca struggle with raising a family; Beth grows suspicious of William; Kate stresses over her weight loss; Kevin faces fallout from his meltdown.

Rebecca pays a surprise visit, Kevin makes plans to move, and Toby prepares a special day for Kate.

Jack and Rebecca take their kids to the community pool; Kevin experiences his first NYC audition; Kate stalks Toby's ex; William's past sends Randall spinning.

Jack and Rebecca disagree about the future, Toby makes a gesture to Kate which backfires, Beth surprises Randall, while Kevin and William have a heart-to-heart.

Jack and Rebecca face a dilemma, Randall puts his foot down, Kate lands a new job, and Kevin finds himself in an unusual situation.

Old tensions between Kevin and Randall resurface, Beth discovers a secret, while Toby makes a change which knocks Kate off course.

As Jack and Rebecca face a disastrous Thanksgiving, the family gather at Randall's house for the occasion.

As Jack and Rebecca deal with Randall's questions about his parents, the siblings head to the family cabin for a post-Thanksgiving trip.

At Christmas, Jack and Rebecca are unexpectedly reunited with an old friend, while Kevin, Randall and Kate face different holiday dramas.

Jack and Rebecca receive surprising news, Kate tries to help Toby, Randall feels conflicted about William and Jessie, while Kevin must make a choice.

As Rebecca's pregnancy drags on, she forgets Jack's birthday, Nathan copes with his grief, and Randall inadvertently intervenes in a difficult marriage.

Jack and Rebecca throw three separate birthday parties; Toby helps Kevin with a romantic gesture; Kate gets a new plan; Randall helps William with his bucket list.

Jack and Rebecca receive shocking news, Randall feels pressure both at work and at home, Kate's plans are thrown off kilter, and Kevin tries to win over Sophie.

Jack and Rebecca's Valentine's Day goes south; Toby and Kate dig deep; Kevin preps for opening night; A tightly wound Randall begins to unravel.

Randall and William take a road trip to Memphis, where Randall learns about William's past.

Jack attempts to meet Rebecca and make things right; Kate, Kevin and Randall make important decisions about their respective futures.