The Better Half (S01E10)

Jennifer Beals guest-stars as Assistant U.S. Attorney Zoe Landau, Lightman’s ex-wife and Emily’s mother. When she enlists Lightman to help investigate an arson case in which the only eyewitness is a 5-year-old boy, it quickly becomes clear that she and Lightman still have feelings for each other. Meanwhile, Foster and Torres question a rapper who is suspected of murder. (iTunes)