1977. Terry and his friend Toby are serving at a United States Air Force base in Missouri. One weekend Toby suggests they go camping just across the Arkansas border, at Devil's Den State Park. What happens that night will change Terry and Toby’s lives forever.

Danny Robins attempts to make sense of a bizarre encounter and a secret that stayed buried for 40 years. With guest experts psychologist Nilufar Ahmed and podcaster Andy McGrillen, author of Atlas of Unidentified Flying Objects.

Written and presented by Danny Robins

Experts: Nilufar Ahmed and Andy McGrillenEditing and sound design: Charlie Brandon-KingMusic: Evelyn SykesTheme music by Lanterns on the LakeCommissioning executive: Paula McDonnellCommissioning editor: Rhian RobertsProduced by Danny Robins and Simon Barnard

A Bafflegab and Uncanny Media production for BBC Radio 4