Both stories in this episode celebrate the bond between brothers. In the first case, Lee Sharp's adoptive parents had told him that he was a foundling, but the team discovers this isn't true and a sibling he never knew he had. In the second case, Peter MacDonald's father snatched him from his mother's arms as a baby as a train carrying her and his older brother Trevor pulled out of Preston station. After 58 years of longing, Peter wants to see his brother again.
