The chapter will argue that Small Island Developing States (SIDS) constitute the epicentre of diverse and converging ‘harmscapes’, associated with both new and old harms—from crime to climate change, to various developmental and everyday insecurities. We therefore propose theoretical and conceptual pathways or ‘lines of flight’ by which criminology can not only engage with converging harmscapes and the everyday insecurities and crises that inhabitants of SIDS face but also better engage with the challenges of operationalising often Western-centric and siloed criminal justice framings in these contexts. Furthermore, implementing the Sustainable Development Goals in these contexts provides a further challenge unless the realities of everyday security governance challenges are made visible. We therefore have to move beyond conventional criminological and policy approaches and to this effect, we present a research agenda towards uncovering and theorising converging harmscapes in SIDS.