When young John Wesley is miraculously saved from his family’s burning home, his mother is certain that God has a great purpose for the boy's life. John will later refer to himself as a “brand plucked from the burning.” As a man, Wesley tries to live out that special purpose on his own strength and good works, but it only brings frustration and failure. Finally, after years of struggle, Wesley embraces saving grace! But his new message is not welcome in the established churches. Will John break all the rules and take his message outside the church walls to the needy and outcast?