"this Is Us" Strangers(2019) -

is revealed to be Kate and Toby’s adult son, Jack—born prematurely at the end of Season 3. Why It Worked

The Season 4 premiere of This Is Us , titled remains one of the most daring episodes in the series' history . Broadcast in 2019, it famously introduced an entire slate of new characters, leaving viewers wondering how they fit into the Pearson family tapestry until a stunning final reveal. "This Is Us" Strangers(2019)

A charismatic teen father in Philadelphia trying to do right by his infant daughter. is revealed to be Kate and Toby’s adult

A blind musician finding love and success in the future. "This Is Us" Strangers(2019)

meets Deja at a barbecue, beginning a pivotal romance.

For the first 40 minutes, the episode focuses almost exclusively on three new characters: