The twelfth season of Blue Bloods, a police procedural drama series created by Robin Green and Mitchell Burgess, premiered on CBS October 1, 2021.
Meanwhile, Danny and Baez use unorthodox methods to work around the Church's confidentiality constraints to find the real killer.
The Reagan family ties are put to the test when Jamie and his nephew Joe Hill (Will Hochman) butt heads over a potentially dangerous use of an informant.
Danny and Jamie join forces with their nephew Joe Hill (Will Hochman) when Jamie and Joe's search for an undocumented trafficked teenaged girl converges with Danny and Baez's investigation into the bombing murder of Eleana Marquez, a pregnant woman in witness protection from Arturo Muñoz; hospital doctors are able to save the baby.
Erin invites Anthony to Sunday dinner, where she informs the family she plans to run for District Attorney.