Doctor Who: The Tenth Doctor: Vortex Butterflies: Part 1

After defeating the Red Jade General in Ancient China, with the help of hundreds of Cindy's clones, Gabby took a personal moment to reflect on an old trip to London the Doctor took her on. She learned then that the Doctor has dark hidden depths, and as the team say goodbye to Cindy's 'children', the TARDIS team may have to come to terms with those hidden depths once more…