This episode focuses on the important links we have to our immediate family and the qualities that we inherit from our parents. Freddie, seven, is brought in after falling several metres from a tree in his garden. He's been in and out of consciousness and doctors are concerned he could have head or spinal injuries. Martin, 66, collapsed at home and spent the night on the floor, and he's now experiencing poor eyesight and dizziness. The stroke team diagnoses a blood clot, but because of the amount of time that has passed since the incident, clot-busting drugs will have little effect. Elsewhere, eight-year-old Jayden has come to St George's with swollen eyes, the result of severe hay fever.