FBI Agent Marcus Webb entered ADX Florence supermax prison undercover and vanished without a trace. All records erased. Security footage wiped. What really happened inside America's most secretive prison where inmates spend 23 hours in solitary confinement? This is the chilling true crime story of deception, corruption, and betrayal inside the concrete walls of ADX Florence, Colorado - where the world's most dangerous criminals disappear forever. This story will leave you speechless. Watch until the end for the shocking twist. LET ME KNOW WHERE YOU'RE WATCHING FROM! Drop your country in the comments below! If you love intense true crime stories, SUBSCRIBE and turn on notifications so you never miss our next investigation! CHAPTERS: 0:00 - The Vanishing 2:30 - Dark Secrets Revealed 5:00 - Shocking Conclusion ABOUT ADX FLORENCE: ADX Florence is America's only federal supermax prison, housing terrorists, cartel leaders, and the most violent offenders. Inmates spend 23 hours per day in solitary confinement in 7x12 foot concrete cells. It's been called "a clean version of hell" and "worse than death" by former inmates. SUBSCRIBE FOR MORE TRUE CRIME STORIES Comment below: Which country are you watching from? Let's see how global our crime community is! Like this video if it gave you chills Share with someone who loves true crime mysteries DISCLAIMER: This video is for educational and entertainment purposes only. All stories are dramatized based on real events and public records. This content complies with YouTube Community Guidelines and does not promote violence, hate, or misinformation. #shorts #short #viral #truecrime #crime #mystery #FBI #prison #ADXFlorence #supermax #solitary #investigation #detective #missing #conspiracy #suspense #thriller #documentary #realstory #shocking #twist #america #usa #colorado #dangerous #criminal #case #unsolved #scary #dark #intense #tension #betrayal #corruption #system #justice #law #enforcement #agent #undercover #vanished #disappeared #erased #secret #classified #security #lockdown #confinement #isolation #cell #inmate #facility #federal #government #coverup #evidence #footage