Twenty years after "Dumb and Dumber" became a box-office hit raking in over $247 million worldwide, Jim Carrey and Jeff Daniels are reuniting for "Dumb and Dumber To."

The Farrelly brothers' movie looks even more crude and cringeworthy than the first.

Carrey and Daniels debuted the new trailer on the “Tonight Show" with Jimmy Fallon on Tuesday, and here's what we learned:

Jim Carrey's character, Lloyd Christmas, has spent the last 20 years in an institution.

Harry Dunne, played by Daniels, has been visiting his best friend every day — but it's all been a prank! When Lloyd reveals it was "all part of a gag," Harry thinks it's "awesome!"

The two immediately return to their old tricks.

Until Harry finds a piece of mail from 1991 from an ex-girlfriend telling him she is pregnant.

Harry learns he has a daughter who was given up for adoption.

And the two set out to find her.

It proves trickier than planned.

But we're guessing they find a way.

"Dumb and Dumber To" hits theaters Nov. 14. Watch the full trailer below.

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