The remarkable story of Russell Dennison, an American ex-convict and Muslim convert who joined the Islamic State in Syria. As U.S. and coalition airstrikes rained down on ISIS fighters in 2018 and 2019, Dennison secretly recorded dozens of hours of audio about his past and his life with ISIS and sent them to journalist Trevor Aaronson with one condition: Nothing he said could be revealed until he was captured or — more likely — killed. Produced by The Intercept, Topic Studios, and Western Sound.