Stranger Things Cast's Tips on Surviving the Upside Down

From the Upside Down to the YH Studio, "Stranger Things" stars Joe Keery (Steve Harrington), Natalia Dyer (Nancy Wheeler), and newcomer Dacre Montgomery (Billy) stop by to scoop us on what we can expect from Season 2 of their hit Netflix series and some tips on how to survive the Upside Down! Plus, they reveal what they would do if they had telekinetic powers like Eleven!