Shots ring out at a church guarded by gunmen in Lagos, Nigeria. Behind the blacked-out windows and high walls are secrets. In a pub in Oxford, England, a woman comes to us with a story. Hosts Charlie Northcott and Yemisi Adegoke investigate the cult of TB Joshua.

Please note, some episodes in this season of World of Secrets contain graphic descriptions of sexual and physical violence, including sexual assault, rape and the language associated with it. This episode also contains strong language.If you've been affected by any of the issues in this series, please contact support organisations in your own country. For a list of organisations in the UK that can provide support for survivors of sexual abuse, go to bbc.co.uk/actionlineArchive: The Synagogue Church of All Nations, Journeyman Pictures#WorldofSecrets