The exceptional health challenges generated by the COVID-19 pandemic have sparked a wave of mobilization among medical students. We were four students to provide support to the Migrant Care Units of the Vulnerability and Social Medicine Department of Unisanté. This two-month experience, very different from the academic framework we were used to during our studies, allowed us to discover a clinic grappling with social and cross-cultural issues, and taught us the mutual benefits of an interprofessional collaboration with experienced nurses. Through a few clinical vignettes, we would like to share the challenges of the care we have seen, as well as the significant lessons we have learned from them.