The 12th doctors intro episode 0: the son of the doctor part 1
The doctor and Clara were in the TARDIS and then a strange emergency can on the monitor "doctor where is the emergency coming from?" Said Clara then the doctor response "Clara it's coming from rivers house in Pennsylvania in her backyard let's go and see then a strange ship crashes in the TARDIS the a blond girl comes out of it and said " hello father." When the doctor see the girl and said " Jenny Is that you?" Then Jenny saids " yes old man it is me your daughter" when Clara hears " your daughter" she asked the doctor "she's your daughter?" Then the doctor nodded yes. When he nodded he asked Jenny " why are you alive Jenny when your dead and why did you come here?" Jenny said " after you left I regenerated my 2nd heart" when Clara herd that she grabbed a X- ray to see Jennys heart or hearts when she looked at her heart she seen 2 hearts instead of 1 then Jenny told her " I told you that I'm a timelord Clara and dad who are we going to help now?" with a smile.
