The foundation of the Million Cat Challenge rested on Five Key Initiatives, which together represented a holistic approach that addressed the “before, during and after” for any cat at risk of shelter entry. In the course of the Challenge, these five initiatives were refined and adapted to shelters of every size and type throughout North America and proven by over 3.5 million more cat lives saved by over 1500 Challenger Shelters. Then, we as a movement and a profession were invited to think even bigger. Paralleling this (r)evolution, the Million Cat Challenge grew into the Maddie’s® Million Pet Challenge (MMPC). The cat-oriented methods embodied in the Five Key Initiatives have been expanded to include other species at risk in shelters, and a greater focus has been placed on ensuring the people who care for and about those pets are able to access affordable veterinary care. Join us in a revolution in community-centered sheltering and care.