Jacob Kowalski is an earnest, No-Maj New Yorker who returns home from fighting in the Great War to become a baker. Upon his homecoming to the Big Apple in 1926, Jacob gets mixed up in the adventures of Newt Scamander. Jacob soon discovers that Newt is no ordinary man, after his case gets mixed up with Newt's: a case which happens to contain several magical creatures. The pair soon become firm friends, as Jacob joins Newt in his mission to find those escaped fantastic beasts.