Donna received her Dad's possession which led Donna and Maria to a garage and a red Mustang. A letter also in his possessions led them to taking the car to see Patti, a friend of Derek's. But when they got there Patti had collapsed from a suspected stroke and her grand-daughter risked being taken into care. Later Patti shockingly revealed that the child, Mia, was Derek's grand-daughter and that Donna should look after her. Meanwhile, Linden compromised his professionalism by talking to Lauren about the incident that got Faye suspended. Elsewhere, witnesses were interviewed about the circumstances leading to Archie's death.