As described in a film magazine review,[2] during a rebellion of prisoners at the San Quentin State Prison, Boston Blackie makes a lightning escape aided by Mary McGinn while chased prison guards. Mary is a school girl, unaware that her brothers are crooks. She is expelled from school. Blackie rejoins his gang and takes refuge in Mother McGinn's house, where he again meets Mary. She devotes herself to making Blackie go straight and wins her point.
^ abBeauchamp, Cari (1998). Without Lying Down: Frances Marion and the Powerful Women of Early Hollywood. University of California Press. p. 447. ISBN0-520-92138-0.
^Pardy, George T. (January 12, 1924). "Box Office Reviews: Through the Dark". Exhibitors Trade Review. 15 (8). New York: Exhibitors Review Publishing Corporation: 22. Retrieved June 29, 2022. This article incorporates text from this source, which is in the public domain.
^Green, Jonathon; Karolides, Nicholas J. (2009). Encyclopedia of Censorship. Infobase Publishing. pp. 76–77. ISBN978-1-438-11001-1.