Overall an absolutely brilliant short trip debut for the ninth doctor. I adore how the titanic is used in this story as it's not used as a setting in the story instead acting as a backdrop for the exploration of the theme of war and it's impact on the people who experienced it. All of the characters are compelling to listen to and the moral dilemma the ninth doctor proposes between 'cat and mouse' is engaging and reveals more about his mindset post Time War.