Don Cheadle, Andrew Rannells & Regina Hall Star in 'Black Monday' - Watch the Teaser!

Don Cheadle, Andrew Rannells and Regina Hall star in the upcoming Showtime comedy Black Monday – and you can watch the teaser right here!

PHOTOS: Check out the latest pics of Regina Hall

Here’s an official synopsis: Black Monday takes viewers back to October 19, 1987 – aka Black Monday, the worst stock market crash in the history of Wall Street. To this day, no one knows who “caused it” … until now. It’s the story of how a group of outsiders took on the blue-blood, old-boys club of Wall Street and ended up crashing the world’s largest financial system, a Lamborghini limousine and the glass ceiling.

The 10-episode series will premiere on Sunday, January 20 at 10 p.m. ET.

Watch the teaser and check out the poster below!