Louis Theroux follows up on his 2007 documentary, The Most Hated Family in America, by returning to Topeka, Kansas, for a visit with the Westboro Baptist Church.
"He again joins the Phelps family on their controversial pickets where they try to antagonise communities with offensive slogans and anti-gay placards. But four years on from Louis's last visit, there are signs of disarray in the Phelps clan. A series of defections of family members has shaken up the church."
In four parts: