This insightful book is a call to action for Christians to get out of their comfort zones and become "Christian Extremists." A positive form of extremism will "result in a move of God that can transform this world in an incredible way- not through anger, bombs and pain, but through love, commitment, and sacrifice." Compassion and humility shine through this appeal for all Christians to be "either all out or all in" when responding to Jesus's final command to "go and make disciples of all nations."