One Challenge. Transforming Nations ... Together. One Challenge (OC Intl) is a mission-sending and support agency passionate about the body of Christ working together to disciple whole nations and to bring God's transforming hope to all people. Our Vision – The body of Christ in unity bringing God’s transforming love and hope to all people. Our Mission – We serve, equip, and connect the body of Christ and its leaders to advance God’s kingdom among all people. Our Strategy – We ask how God is at work, then assist the body of Christ to bring God’s transformation to lives, communities, and nations. One Challenge is involved in Missions Mobilization, Church Planting & Growth, Education, Holistic Ministry, Leadership Development, Member Care, Partnering & Bridge Building, Research, Sports Ministries, as well as Business for Transformation.