Lord Have Mercy! features up-and-coming Canadian actor Arnold Pinnock as Youth Pastor Dwight Gooding. An ambitious but socially inept young minister who plans to make big changes at Mt. Zion, a church in the heart of Toronto's Caribbean community. But he must compete with the charismatic and easy-going Pastor Cuthbert Stevens (played by popular Trinidadian comic Dennis "Sprangalang" Hall) for the loyalty and attention of the eccentric church crew.