After three tours of duty in Afghanistan, T.C. Callahan, M.D. (Eoin Macken), is learning that his toughest job might be right here at home. On THE NIGHT SHIFT, at a San Antonio emergency room, by-the-books hospital administrator Michael Ragosa (Freddy Rodriguez) is newly in charge and tasked with the job of cutting costs and bringing the hospitals doctors in line. T.C.s not so crazy about that idea, even while he supports his ex-girlfriend and professional colleague Jordan Alexander (Jill Flint), whos angling for the job of head night-shift doctor wrangler.