When her father, Pete Tyler, was killed in a hit-and-run accident, Rose requests that the doctor transport her back to that day. Rose saves Pete’s life rather than being there when he dies, leaving a wound in space and time that flying beings called Reapers try to heal by devouring everyone inside. As the Doctor attempts to call the TARDIS inside a church, the guests of Jackie and Pete’s friends’ wedding hide there. In order to demonstrate that Rose is identical to the infant Rose, Jackie accuses Pete of having another daughter. He then places the baby in the arms of the older Rose, which causes a Reaper to materialize inside the chapel and murder the Doctor. Pete realizes that he must die in order for everything to be fixed, so he throws himself in front of the car that keeps coming up around the corner of the church. This makes the Doctor and everyone else the Reapers ate come back.