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.
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.
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 argue before the beginning of her tour, Kevin faces another opening night, while the entire family gathers at Randall's for an unusual party.
