神秘博士：无形之敌 The Invisible Enemy (Doctor Who)

K9的首次登场，超可爱也超可靠的机器小狗狗。 其实我觉得缩小克隆体挺微妙的，那些克隆人有着主人的一切记忆与意识，但只能活数分钟。他们唯一的使命就是进入本体体内治病，有点为他们感到些不平衡（

K-9那句affirmative master简直心都萌化了～离开老主人也比谁都干脆！>< 整个故事好儿童的想象力，博士你脑子里是垃圾场吗～ 那么敷衍的特效估计当时孩子们看得也挺high的…所以人类是有自动脑补功能的对吧…现在那些破3D根本没意义…除了让人头晕眼睛痛…

"The virus has a perfect right to exist as a virus, not as a giant storm threatening the entire solar system. Everything has its place, otherwise the delicate balance of the whole cosmos is destroyed."这才是我爱的博士嘛!博士大脑十分钟游致敬Fantastic Voyage，特效简陋但有趣

K9首次亮相！（鼓掌）可是K9啊，你爸爸说要把你送人你怎么没一点留恋蹬蹬蹬地就跑去了呢...

Good luck, Doctor. You know we should've done what I said. What was that? Blow them up. That was a good idea of mine, K9, to blow it up. What do you mean, it was a good idea of yours? lt was my idea.