This Is Us - Season 3 Apr 2026

Season 3 of premiered on September 25, 2018, and shifted the series' focus from the mystery of Jack’s death to his complicated history in the Vietnam War . It also follows the "Big Three" as they navigate massive life transitions, including parenthood, political careers, and uncovering long-buried family secrets. Key Storylines & Character Arcs

: Flash-forwards throughout the season build toward a revelation of the family gathering at Kevin’s house to see an elderly, ailing Rebecca . Major Cast & New Additions This Is Us - Season 3

: Kevin travels to Vietnam with his girlfriend, Zoe , to learn about Jack's military service, eventually discovering that Nicky is actually alive and living in seclusion. Season 3 of premiered on September 25, 2018,

: The season explores Jack’s time in Vietnam, revealing the existence of his brother, Nicky , whom the family believed had died in the war. Major Cast & New Additions : Kevin travels

: Randall runs for a city council seat in Philadelphia, causing significant strain on his marriage to Beth as they struggle to balance his ambitions with her desire to open a dance studio.

: The couple undergoes a difficult IVF journey , resulting in the premature birth of their son, Jack.