SHARE the love! And SUBSCRIBE for more. What's the scariest thing you've ever done? Let us know in the comment section below. We stayed overnight in a ghost town and it was absolutely terrifying. Not a lot more to say here. Enjoy! Yes Theory are four friends from four different countries who constantly seek discomfort in order to grow. Ammar, Thomas, Matt and Derin met in Montreal, Canada in the summer of 2015 and bonded over their shared desire to live a life that challenged and excited them. Fast forward to a year later, the team is now based out of Los Angeles, making a show on Snapchat Discover every Sunday on the Brother Channel.