After getting a match from an unknown relative from a DNA network, Sean Reagan does some detective work to figure out who this mystery person might be. Frank gets a personal request from a woman to transfer her son to a safer assignment. Also, Danny seeks to uncover the truth behind the murder of a key witness in one of Erin's cases, and Eddie begins to think about having a child after she and Jamie discover a newborn left outside their precinct.
Quest roles:
Kristina Bartlett(Taru Tech Santini), Richard Kline(Judge Angioli), Jared Morrison(Taru Tech Walker), Joe O'Connor(Officer Malone (as Joseph John O'Connor)), Bonnie Somerville(Paula Hill), Jamila Velazquez(Camila Garcia), Gwendolyn Ellis(Dr. Sarah O'Sullivan), Carlos Andrickson(Juan Acosta), Reynaldo Piniella(Teddy Valdez), Jess Nahikian(Amy Taylor), Danielle Davenport(Nia Martin), Roman Maldonado(Cortez), Alexander Goyco(Geo Valdez), Avery Anton(Pregnant Teen), Ale Valentina(Marisol), Frank GarcĂa(Bodega Owner), Will Hochman(Joe Hill)