Former Childrens Hospital star Rob Huebel is set for a lead role in ABC pilot Unit Zero , an action dramedy starring Toni Collette from the Black-ish duo of exec producer Kenya Barris and supervising producer Lindsey Shockley. Written by Shockley, Unit Zero follows Jackie Fink , a brilliant but unassuming CIA engineer and single mom, as she leads a team of desk jockeys into the field as secret agents.