 "Sirens" focused on the work and lives of three rookie female Pittsburgh Police officers.Officer Sarah Berkezchuk (Jayne Brook) is dealing with her failing marriage, Officer Lynn Stanton (Adrienne-Joi Johnson) is a single mom, and second-generation cop Officer Molly Whelan (Liza Snyder) has a bad attitude which starts to interfere with her job.Each rookie officer worked under a veteran cop, and each grows and becomes more focused as a result.