Sometimes your past just won't let go... As a heat wave grips the country, DS Jenna Morgan is called to a domestic incident at the home of a young family in Ironbridge. Pregnant Imelda Cheetham-Epstein has been found unconscious by her husband, Zak with serious head injuries. When Jenna arrives on the scene, she discovers something even more disturbing - the couple's eleven-month-old son, Joshua, is missing and the race against time begins to find him. Is this an accident or something more sinister? Are the two incidents linked? Or has something in the Cheetham-Epstein's past caught up with them?