WATCH: 'The Morning Show’ season 4 teaser trailer - what we know so far!

‘The Morning Show’ starring Jennifer Aniston and Reese Witherspoon returns to Apple TV+ September 17.

The teaser trailer shows Aniston and Witherspoon walking towards each other next to the mirrored UBA building from the show. As they are walking, other cast members from the show are seen reflecting in the mirrored building, teasing some new characters for season 4.

The men behind the two powerful UBA anchors, played by Mark Duplass and Billy Crudup return while talking about “dirt to exchange” and offering to do “someone’s dirty work” in the teaser.

Jon Hamm is heard offering Alex Levy (Aniston) some advice, “You wanna run this place? You have to really, really want it.”

Greta Lee and Karen Pittman return and are struggling with the new UBA hierarchy while new characters played by Boyd Holbrook, a provocative podcaster and talk show host named Brodie. Season 4 also welcomes Oscar winner Marion Cotillard, playing Celine Dumont, who is an operator from a storied European family, “I like to know who’s an ally and who’s a liability,” she says in the teaser.

The 10-episode season returns Wednesday, September 17 on Apple TV+ with one episode, followed by a weekly Friday release through November 19.