Today we build a Minecraft hidden base inside a minecraft hidden base inside a Minecraft hidden base inside a... yeah, you get the idea. This involves a bunch of Minecraft hidden entrances, secret redstone hidden activation devices, flush piston doors, torch keys, item filters, redstone item detectors and logic. This hidden Minecraft bunker is pretty complex! Filming channel: https://www.youtube.com/user/ThatMumboJumbo2 Instagram: https://www.instagram.com/officialmumbo/ Twitter: https://twitter.com/ThatMumboJumbo