In 2003, Pastor Steve McKinney and Pastor Rufus Valencia partnered together to begin Frontline Fellowship Church in the Granite City area.
Over the next 8 years, the church grew and the staff enjoyed the camaraderie with their friends who were pastors at Grace STL. Steve and Rufus recognized there were some limits to what they could accomplish on their own. In 2011, Frontline Fellowship asked Grace Church STL to adopt the church as a campus extension. Steve still serves today as the Campus Pastor and Rufus serves as the Administrative Pastor.