FBI Season 2, Episode 4 An Imperfect Science Crime Drama IMDB 7.911 Country United States Duration 43 min Air Date 2019-10-15 Actors Missy Peregrym (Maggie Bell) Zeeko Zaki (Omar Adom 'OA' Zidan) John Boyd (Stuart Scola) Katherine Renee Kane (Tiffany Wallace) Shantel VanSanten (Nina Chase) Jeremy Sisto (Jubal Valentine) Alana de la Garza (Isobel Castille) Overview After a shooting at a nightclub, it appears that the FBI may have ignored previous threats from a local white supremacist group. Also, Kristen wrestles with her commitment to the Bureau and her responsibility to her community.