(from Disney XD's press release, February 2015) Disney XD's #1 comedy series "Lab Rats" will make its fourth season premiere with a new story location - Davenport's Bionic Academy, a training facility on a remote island that brings higher stakes and over-the-top missions for Leo and his super-human step-siblings, Chase, Adam and Bree - and a new series title, "Lab Rats: Bionic Island," in a one-hour episode WEDNESDAY, MARCH 18 (8:30-9:30 p.m., ET/PT). A Disney XD viewer favorite, the series stars Billy Unger, Spencer Boldman, Kelli Berglund, Tyrel Jackson Williams and Hal Sparks. The fourth season will also include a special guest appearance by Leo Howard (of Disney XD's "Kickin' It") and a crossover episode with the superhero comedy series "Mighty Med." In the hour-long premiere episode, "Bionic Rebellion - Part 1 and 2," Chase, Adam, Bree and Leo learn that a confidante has formed an evil rebellion to exact revenge, leading to a bionic battle of good versus evil. "Bionic Rebellion - Part 1" will be available on WATCH Disney XD for verified users and Disney XD on Demand beginning Wednesday, March 11.