Leeds olice constable Jo Gilles ie (Sheridan Smith) is devastated when her husband, undercover officer Ryan (Kenny Doughty), is killed in sus icious circumstances. As she battles to stay strong for the benefit of daughter Melly (Honor Kneafsey) and ste son Hal (Oliver Woollford), Jo is urged by her bosses, DCI Will He burn (Douglas Henshall) and Chief Constable Carolyn Jarecki..
