An integrative review was conducted to evaluate and synthesize the current state of knowledge of family carers’ experiences of emergency psychiatric crises of an adult relative. A literature review was performed by searching key terms in EBSCO (CINAHL, Criminal Justice Abstracts, Social Work Abstracts), and Proquest (MEDLINE, PsycINFO) citation databases; 3,350 citations were retrieved and screened for inclusion. Data synthesis of 25 articles meeting inclusion criteria revealed the following five themes: building to crisis; conflicted emotional experience; police apprehension; invisible experts; and “need to know.” Findings provide essential insight into family carers experiences and needs during crisis that is informative for emergency mental health response practices.