At long last, we now know what J.K. Rowling's "Fantastic Beasts and Where to Find Them" is actually about.

Entertainment Weekly reveals that in the "Harry Potter" spinoff, preeminent magizoologist Newt Scamander travels -- for still-mysterious reasons! -- to 1926 New York City, his weathered magical suitcase filled with his collection of "rare and endangered magical creatures" from around the world. In the Big Apple, he discovers American wizards are downright fearful about people without magical powers -- "Muggles" in England, "No-Maj" in the United States -- learning of their existence.

So, what happens? Why, some of the eccentric English wizard's collection of magical (and quite dangerous) creatures escape from their case.

Directed by “Harry Potter” veteran David Yates from a script by Rowling, the film also stars Katherine Waterston, Colin Farrell, Ezra Miller, Dan Fogler, Samantha Morton, Jon Voight, Gemma Chan, Carmen Ejogo and Ron Perlman.

The first film in a planned trilogy, “Fantastic Beasts” is set to open Nov. 18, 2016.