During our international exchange week in Barcelona during the first week of May, we managed to create this video documentary. It summarizes all the research done in each of the countries and all the cooperation and exchange held in Barcelona about invasive species, migration flows and plastic pollution. We would like to thank the CRAM (Centre de RecuperaciĆ³ d’Animals Marins) and PROACTIVA OPENARMS for their contribution to the realization of this video.