In a time of war, every means of victory must be explored. In the Time War, the unthinkable must be thought, and neither side can afford to be squeamish about their methods.

When the destruction of an obscene weapon leads to the Time Lord once known as the Doctor uncovering a secret Gallifreyan initiative, he cannot believe what is being considered.

Should victory be sought at any cost? Or are there worse possibilities than losing to the Daleks..?