The YH Studio becomes the Upside-Down when Millie Bobby Brown, Gaten Matarazzo, and Caleb McLaughlin from Netflix's smash-hit series "Stranger Things" pay us a visit! The three young actors reflect on the show's amazing success, plus they share their thoughts on series creators the Duffer Brothers, talk about some on-set pranks, and reveal what superpower they'd love to have in real-life, then we challenge them to a "strange" little game!