The Bill - Season 11 Episode 148 Ties That Bind

Datta and Monroe investigate when a baby girl is found abandoned on the steps of the local social services building. A young boy then comes into the station, claiming that he might be the child's father. The baby's grandmother denies all knowledge and claims that her daughter miscarried five months ago, but when Datta and Monroe find her in a newly built apartment block, they discover that mother and daughter have been keeping more than the truth from one another.