Original: The series began in April 2008 , and after several cameos , Piper made her official return as Rose in the series four final episodes '' Turn Left '' , '' The Stolen Earth '' and '' Journey 's End '' .
Simplified: The series began in April 2008 , and after several cameos , Piper made her official return as Rose in the series four final episodes Turn Left , The Stolen Earth and Journey 's End .