Attention people of the universe! In the final chapter of The War Master saga, the Master (played by Derek Jacobi), unleashes his most audacious plot yet – as leader of the Daleks... And it’ll take a Master from another universe (Mark Gatiss) to stop him...

The War Master: Anti-Genesis also features listeners’ favourite Narvin, played by Seán Carlsen, joining the fight against the most machiavellian Master of them all, with Nicholas Briggs as the voice of the Daleks.

1. From the Flames by Nicholas Briggs
2. The Master’s Dalek Plan by Alan Barnes
3. Shockwave by Alan Barnes
4. He Who Wins by Nicholas Briggs

In the Time War there is a crime that not even the Daleks would dare consider. But the Master has more than considered – he is ready to commit…

Writer and co-script editor of this box set, Nicholas Briggs, told us more, “When producer/director Scott Handcock and I came up with the idea of there being an ‘alternative universe’ Master in the fourth War Master box set, we were very excited. We had it in mind that if Mark Gatiss really wasn’t available that we could, in theory and desperation, invent another ‘alternative universe’ Master — but we were really hoping for Mark. And the fact that Mark could make the recording dates makes me very happy indeed. The whole relationship between Derek Jacobi's War Master and Mark’s Master is an intriguing one that gives many opportunities for stand-out performances from these great actors.”

The War Master: Anti-Genesis is available for pre-order now at £22.99 on CD or £19.99 on download.

The first two series in The War Master range – Only the Good and The Master of Callous – are available from Big Finish Productions at £34.99 on CD or £29.99 on download. The third series, Rage of the Time Lords, is available at £22.99 on CD or £19.99 on download until the end of September. Or why not save money and get a bundle of all four series at just £90 on CD or £80 on download.