With Jimmy still AWOL, Nicola decides to call the police and report him missing. At the same time, Carl answers the office phone and when a female caller asks for Jimmy, he questions who it is - but the line goes dead. Carl doesn't tell Nicola, but this only confirms to him that Jimmy is having an affair. And when Nicola accuses him of hiding things from her he can't help but let her know his suspicions. Meanwhile, at the factory, Lisa is finding it ever harder to hide her fears for Lizzie as she gets closer to Derek. Later, Nikhil mentions that he has some overtime available later that week and Lisa is appalled to witness Derek and Lizzie both sign up for it.