A man banned from working in education in the aftermath of the Trojan Horse letter inspires Brian and Hamza to track down one last witness with him – in Australia. And all three travelers find their faith tested. To get full access to this show, and to other Serial Productions and New York Times podcasts on Apple Podcasts and Spotify, subscribe at nytimes.com/podcasts. To find out about new shows from Serial Productions, and get a look behind the scenes, sign up for our newsletter at nytimes.com/serialnewsletter. Have a story pitch, a tip, or feedback on our shows? Email us at serialshows@nytimes.com