This Is Usreleases first trailer for season 4, with loads of new faces

Its so strange, isnt it?

70s-era Rebecca (Mandy Moore) says to Jack (Milo Ventimiglia).

How just like that, a complete stranger can become such a… big part of your story.

Its actually kind of terrifying, you know?

Shes greeted warmly with a homecoming hug by Nick Wechsler (Revenge).

Meanwhile, Omar Epps (House) is working at a body shop.

Keep an eye out for M. Night Shyamalan, who is a master of the twist likeTIUcreator Dan Fogelman.

Theres a young man with a keyboard.Theres a very young version of the Big Three.

But as the trailer reminds, If you think you know whats coming next, you dont know us.

Rewatch the trailer which was released after much hype and mystery to pick up more clues.

And to see some first-look photos from the first two episodes of season 4,head over here.