The Genocide Machine is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who.

On the planet Kar-Charrat, the Seventh Doctor and Ace try to prevent the Daleks acquiring a technology called the Wetworks Facility.

Bev Tarrant and her salvage team arrive on the apparently uninhabited planet Kar-Charrat, in order to take possession of the mysterious and valuable Ziggurat.

Elgin shows the Doctor the amazing technological development housed at the library — the wetworks facility.

Elgin mentions that aggressive aliens had been making threats against the library, and the Doctor eventually gets out of him that it is the Daleks.

The Doctor heads back to the TARDIS with Elgin, the only course of action left open to him is to send an emergency message to the Time Lords.

They take him to the facility, and connecting him to the machinery, they successfully download the entire knowledge of the Universe into a Dalek test subject.

Meanwhile, Ace and Bev realise that mysterious noises they had overheard in the rainfall were in fact some kind of life form.

Whilst the Daleks' download of the Wetworks is occurring, Rappell arrives and proceeds to rescue them, but they soon come face to face with the Dalek test-subject, ready to exterminate them… The test-subject is out of control and disoriented after the download and misses completely when it tries to exterminate Ace, Ben and Rappell.

It shoots a hole in the wall of the library, through which Ace and Bev make their escape, but Rappell stays behind to cover them and is exterminated.

Elgin rues the destruction of his life's work, but out of guilt for his treatment of the Kar-Charratians realises it was a crime.