Exclusive "Lab Rats" Set Tour & Chat with the Cast

YH goes behind the scenes of Disney XD's hit series, "Lab Rats", where star Kelli Berglund gives us a grand tour of the set, including the brand new lab that was built for Season 3! We also get to see the cast's dressing rooms, take a peek inside the wardrobe department, and check out the goodies at craft services. Plus, we talk to actors Billy Unger, Spencer Boldman, Tyrel Jackson Williams, and Maile Flanagan to find out more about the show's 3rd season!