Safe Horizon and the Childhood Violent Trauma Center at Yale Child Study Center joined forces to address the needs of children traumatised by abuse. Working together, the two institutions adapted and implemented a brief, evidence‐based intervention for traumatised children developed by the Childhood Violent Trauma Center at the Yale Child Study Center for implementation at four Child Advocacy Centers (CACs) in New York City. The Child and Family Traumatic Stress Intervention (CFTSI) is a family strengthening intervention that aims to reduce early post‐traumatic stress symptoms; to decrease the likelihood of traumatised children developing long‐term post‐traumatic psychiatric disorders; and to identify children who need longer‐term mental health care. Intended for children 7 to 18 years old who have either recently experienced or disclosed traumatic events, CFTSI has demonstrated exciting results, which this report documents.