Back up to: Season 13
6/6 Outside Chase's home the Krynoid prepares to germinate, sending seed pods everywhere.
5/6 The Krynoid grows to an enormous size and demands that the Doctor be surrendered to it.
4/6 Keeler has been infected by the alien pod and is transforming into a Krynoid.
3/6 The Doctor and Sarah track down the Krynoid pod to the estate of Harrison Chase.
2/6 Scorby and Keeler are sent to get the pods and are willing to kill to cover their tracks.
1/6 Learning of an alien seed pod at the Antarctic, the Doctor and Sarah investigate.