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Mandy Moore, Milo Ventimiglia, Sterling K. Brown and more star in the ensemble drama about a group of people who share the same birthday and so much more than anyone would ever expect.

Jack and Rebecca struggle to overcome distance in their marriage; Toby encourages Kate to let loose; Kevin faces fallout from his meltdown; and Beth protects her man. Katey Sagal guest stars.

It's a hot summer day at the pool! Struggling with grief, Rebecca (Mandy Moore) makes a secret pact with William (Ron Cephas Jones); Kevin (Justin Hartley) decides to move to NYC; and Toby (Chris Sullivan) puts Kate (Chrissy Metz) in the limelight.

It's a hot summer day at the pool! Kevin experiences his first NYC audition; Kate stalks Toby's ex; William's past sends Randall spinning.

What do the Pearson triplets' origin story and the Pittsburgh Steelers have in common? Everything.

Dilemmas of opportunity and sacrifice play out in the lives of father and son; Kate gets a new job; Kevin goes on an unusual first date.

As her marriage cools down, Rebecca picks up her musical career; the brothers' feud comes to a head; Toby's decision to stop dieting throws Kate into a tailspin.

The unfortunate events of one terrible holiday lead to the Pearson family's Thanksgiving tradition; Kate makes a life-changing decision; Randall makes a startling discovery.

With Randall still reeling from his mother's betrayal, the Pearson triplets head to the family cabin for a post-Thanksgiving getaway; Jack and Rebecca struggle when nine-year-old Randall mounts a search for his birth parents.

The Pearsons come together to support a sick Dr. K; Randall talks a co-worker off a ledge; and Christmas has a couple of big surprises in store for the Pearson family.

Jack and Rebecca get big news; Randall struggles to understand William's relationship with Jesse; Kate and Toby deal with the aftermath of his heart attack; Olivia throws Kevin for a loop.

A heavily pregnant Rebecca forgets Jack's birthday; Dr. K struggles with the loss of his wife; baby Randall inadvertently saves a marriage.

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

A friend's divorce shakes Jack and Rebecca's marriage; Kevin tries to pick up where he left off with Sophie; anxiety takes hold of Randall's family; Toby throws a wrench in Kate's plan.

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.

Birth father and son embark on a road trip of a lifetime, revisiting the city of William's birth, Memphis.

The Pearson family celebrates William's life; Rebecca goes on tour; Kevin and Sophie take a big step on the night of his opening; Kate opens up to Toby; Randall makes a big decision.

Acting on Kate's advice, Jack heads to Rebecca's first tour date while we flash back to the day they first met; the Big Three make big decisions about their lives.