The Big Three's 40th birthday is fast approaching and everyone heads to the cabin for the milestone, except Randall; Flashbacks show the immediate lead ups to the Big Three's births and Randall's biological mother.
Runtime: 44
Starts: Chad Allen, Milo Ventimiglia, Mandy Moore, Sterling K. Brown, Chrissy Metz, Justin Hartley, Susan Kelechi Watson, Chris Sullivan, Jon Huertas, Niles Fitch
Director: Ken Olin