What would happen in your city if 10% more people became vibrant Christians working together for the good of the community?

Mac Pier knows from firsthand experience that when the gospel invades your city, big things start to happen. For thirty years he's watched and participated in what God has been doing in New York City. Now he shares true stories of transformation to inspire those who long to see God move in their own communities. He uncovers the greatest barriers to the gospel in major cities all over the world, shares hopeful stories of reconciliation, highlights the passion and leadership of young people advancing the gospel, and offers insight into how to start or join a gospel movement--wherever in the world you find yourself.