A wasteland. A dead world. No, there is a biodome rising from the ashes. Here, life teems and flourishes, with strange, lush plants and many-winged insects with bright carapaces – and one solitary sentient creature, who spends its days talking to the insects and tending this lonely garden. This is Inyit, the Last of the Kotturuh and these are The Dark Times. The tenth Doctor has sworn to stop the Kotturuh, ending death and bringing life to the universe. But his plan is unraveling; instead of bringing life, nothing has changed and all around him people are dying. Death is everywhere. Now he must confront his former selves, one in league with their greatest nemesis, the other manning a ship of the undead.