The revivals of 1859 and 1904 in Wales stand as powerful examples, marked by a commitment to prayer, bold preaching for repentance within the church, and a community-wide spiritual awakening. During this time, churches were packed, crime rates and other social ills decreased dramatically, and nominalism and dead orthodoxy were replaced by passionate love for Jesus. This documentary traces the origins of the revival, introduces us to its leaders, and follows its lasting impact upon the world.