Two children barricade themselves in their room—and livestream the 54-day standoff on TikTok, captivating the nation. Why? Now finally, an unprecedented look at what really happened behind closed doors. “The Nightmare Upstairs: What Happened to Ty and Bryn” premieres Tuesday, May 19th, streaming on Hulu and Hulu on Disney+. ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7