When does Lab Rats return?

Lab Rats, also known as Lab Rats: Bionic Island for the fourth season, is an American comedy television series that aired on Disney XD from February 27, 2012 to February 3, 2016. The series stars Billy Unger, Spencer Boldman, Kelli Berglund, Tyrel Jackson Williams, and Hal Sparks. A young teenager named Leo Dooley lives a normal life until the day his mother Tasha gets married to billionaire inventor Donald Davenport, with whom they move in. While trying to find his bedroom, Leo discovers teenage siblings with bionic superpowers living in his new basement.