Family reunification is an area of high policy importance for child protection systems. The safe return of children from out‐of‐home care to their biological parents or relatives and long‐term family preservation can potentially mitigate the subsequent detrimental effects of separating children from their families. In this paper we describe one type of family for whom reunification was considered; namely, families who have been affected by intergenerational trauma. To assist families affected by intergenerational trauma and abuse requires an understanding of the mechanisms and processes that maintain intergenerational trauma and how these might inform therapeutic approaches for working with children and their families. This paper utilises case studies to illustrate the use of the Adult Exploration of Attachment Interview (AEAI) as part of a broader therapeutic reunification program in an Australian state. The AEAI focuses on supporting parents to become aware of the impact of previous experiences in their childhood; the mitigation of feelings of shame, self‐blame, and inadequacy by helping the parent confront the negative experiences of the past. The aim is to assist the parent to recognise the significance of the past, to consolidate their strengths, and to develop more nurturing relationships with their children. Case illustrations demonstrate that this therapy was a component in addressing the causes of behaviour and psychological distress that had been barriers to reunification from care in two families. This was achieved through a process of reflection and self‐awareness, rather than one focused on guilt or shame, with the therapist there to help verbalise and articulate what otherwise might have been hidden or implicit processes. In both cases, this awareness was used to help reframe the parent–child relationship and led to observable behavioural changes in parenting practices.