200 Behold The Tempted part four

Episode 200
Season 40 – Production code 18DWA200
“They say home is where the heart is…” 
The TARDIS offered an opportunity to run away, one that couldn’t be ignored. When your world is turned upside down and you no longer feel at home, how could you not dream about the possibilities of all of time and space? It was the ultimate chance to get away from the difficulties of life. But there comes a moment when you can’t run anymore, when you have to go back and face the music.
Her family needs her. It’s time for Georgie to go home. Except life with the Doctor means nothing is ever simple and in the throes of a heart-breaking reunion, Georgie will face the toughest choice of her life.
And when she encounters a problem even the Doctor can’t solve, will she be able the resist the temptation of a happy ending that will have disastrous consequences for the rest of the planet?