This Is Us season 4 finale live stream: Watch Strangers Part 2 online

THIS IS US -- "Strangers: Part Two" Episode 418 -- Pictured: (l-r) Sterling K. Brown as Randall, Justin Hartley as Kevin, Chrissy Metz as Kate -- (Photo by: Ron Batzdorff/NBC)
THIS IS US -- "Strangers: Part Two" Episode 418 -- Pictured: (l-r) Sterling K. Brown as Randall, Justin Hartley as Kevin, Chrissy Metz as Kate -- (Photo by: Ron Batzdorff/NBC)

The fourth season of the smash NBC hit This Is Us ends on Tuesday night with “Strangers, Part 2.” Here’s how you can watch online.

It’s been a quiet season for This Is Us. After bursting onto the television scene, captivating and emotionally crushing audiences (and sending Kleenex stock skyrocketing), This Is Us has mellowed into a network primetime staple of solid acting, minor mysteries and heartfelt family-driven drama.

This Is Us season 4 wraps up tonight with episode 18 “Strangers, Part Two.” Read on to learn how you watch the season 4 finale online.

MORE: 3 predictions for the This Is Us season 4 finale 

The latest season opened the Pearsons’ world up with the slightly divisive “Strangers” and it looks like the season will be book-ending its story with a finale title “Strangers, Part Two.” Over the course of the season, the titular strangers, which primarily focused on Malik (Asante Blackk), Jack (Blake Stadnik) and Cassidy (Jennifer Morrison), where revealed to be connected — as we expected — in various ways, in various timelines, to the central Pearsons.

The promo for the finale, which ran after last week’s episode and you can watch below, includes brief shots from the show’s multiple timelines of Rebecca (Mandy Moore) and Jack (Milo Ventimiglia); Toby (Chris Sullivan), Kate (Chrissy Metz) and baby Jack; future baby Jack (Stadnik) and his wife Lucy (Auden Thornton).

Promo photos have also teased the return of Dr. K (Gerald McRaney), Malik and Uncle Nicky (Griffin Dunne).

Here’s how you watch the This Is Us season 4 finale online or by live stream.

Date: Tuesday, March 24
Start Time: 9:00 p.m. ET
Episode: “Strangers, Part 2”
TV Channel: NBC
Live Stream: Stream on NBC, Hulu or watch live on Fubo TV. Sign up now for a free seven-day trial.