‘This Is Us’ Season 1 Episode 4 Spoilers: The Big Three Discover Secrets Of The Past; Jack Will Come Back, Ventimiglia Says

"This is Us" promo for its fourth episode tease the recent discoveries of the Big Three. Kaye (Chrissy Metz) is suggested to find out about Toby's (Chris Sullivan) ex-wife while Kevin (Justin Hartley) is set to meet Randall's (Sterling K. Brown) biological father. Their parents, on the other hand, also have challenges of their own as they struggle to keep a mixed family from the past timeline of "This is Us."

In the promo released for "This is Us" Episode 4, Kaye and Toby were seen in a diner when Toby encountered his ex-wife. Toby's ex-wife seems to have affected Kaye as the woman was hot and sexy. As Metz revealed on US Magazine, more tears are coming on "This is Us" so does this include hers as she was affected by Toby's ex-wife?

"This is Us" Episode 4 promo also showed Kevin unexpectedly visited Randall. However, Randall's biological father was also in the house at the time. It remains to be seen whether Randall will introduce his real father to Kevin or will he continue keeping it as a secret.

Meanwhile, in the past timeline of "This is Us," Rebecca (Mandy Moore) was seen trying to reach out with their neighbors but it did not turn out well. Can Rebecca convince their neighbors that she is trying her best to treat her kids equally?

Speaking of Rebecca's struggles, the last episode of "This is Us" revealed that she already knew Randall's father since he was young. However, she chose not to let anyone know about her big secret as she was scared to lose Randall. Rebecca might be in for a big mess when Randall finds out about the truth as Randall had been searching for his father since then.

The previous episode of "This is Us," however, did not reveal where Jack (Milo Ventimiglia) was but Ventimiglia teased that fans may see Jack soon. In an interview with E!, Ventimiglia said, "Just wait. This is old-fashioned television story. You gotta wait.," E! News reported.

"This is Us" airs every Tuesdays at 9 p.m. on NBC. What do you think of the next episode of "This is Us?" Let us know after checking the promo of "This is Us" Episode 4 below.