Based on the books by J.K. Rowling, they are seen as the prequel to the Harry Potter Franchise
The adventures of writer Newt Scamander in New York's secret community of witches and wizards seventy years before Harry Potter reads his book in school.
In an effort to thwart Grindelwald's plans of raising pure-blood wizards to rule over all non-magical beings, Albus Dumbledore enlists his former student Newt Scamander, who agrees to help, though he's unaware of the dangers that lie ahead. Lines are drawn as love and loyalty are tested, even among the truest friends and family, in an increasingly divided wizarding world.