This Is Us - Season 3 -

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

: The season explores Jack’s time in Vietnam, revealing the existence of his brother, Nicky , whom the family believed had died in the war. This Is Us - Season 3

: 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 : The couple undergoes a difficult IVF journey

: 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. revealing the existence of his brother