Expect the Unexpected on Season 4 of “This Is Us”

Mandy Moore, Milo Ventimiglia, Lonnie Chavis, Parker Bates, and Mackenzie Hancsicsak in "This Is Us"

Fewer shows keep us as on our toes as This Is Us.

The NBC drama can easily take us from laughs to tears and back again in the space of an hour while exploring the lives of the Big Three.

With season 4 set to debut next month, the new teaser for the series has warned, “If you think you know what’s coming next… you don’t know us.”

Many bombshells have been dropped throughout the series, which transcends timelines, and the forthcoming installment is not expected to be any different.

“Well, we’re going to meet some new characters, which is exciting,” teased Chrissy Metz who plays adult Kate. “And we’re going to see how they’re all sort of intertwined and how they all affect the Pearsons. That’s a pretty good clue, that’s a pretty good hint for you.”

According to some of the images already released, we will see Jack meeting Rebecca’s parents and Kevin has a new movie.

Season 4 of This Is Us premieres September 24th.