David Agus, noting, "I was unable to walk and then suddenly you can't see." Soon after, the trio are seen going over images in a lab.
Later in the trailer—which also features interviews with Nick Cannon, Amy Schumer, Oprah Winfrey, Howie Mandel and more—Michael and Ashton share a tearful moment, during which the No Strings Attached actor places his hand on his brother's knee and they then grab one another's' hands.
During the scene, Ashton can be heard saying, "When you have this face to face with death you instantly lock in to 'What you you doing with today?".