Williams (the younger brother of Everybody Hates Chris star Tyler James Williams) stars as teenager Leo Dooley, whose mother, Tasha (Parker), marries inventor Donald Davenport (played by Hal Sparks). Davenport just happens to have a secret lab in his home that his step-son stumbles upon, which happens to house Leo's three new lab-created, bionic step-siblings. *Your typical family/high school sitcom hi-jinks are sure to ensue.*
Lab Rats airs tonight on Disney XD at 8:30PM, EST.