A brand-new series set in The Worlds of Doctor Who begins today – and it’s not one for the faint of heart. The planet of Sunlight is a peaceful paradise, until one day, the Krynoid pods arrive. 

First seen in the 1976 Doctor Who TV story The Seeds of Doom, the Krynoid is a carnivorous plant that, once it takes root on a planet, is almost impossible to stop. 

This three-hour disaster horror story is Doctor Who’s answer to The Last of Us and The Walking Dead. Leading the cast is Reece Shearsmith (star of Inside No. 9, The League of Gentlemen, and much more), making his Big Finish debut as Governor Robert Hodan. 

And Paul McGann guest stars in the second episode as the Eighth Doctor. The Doctor usually saves the planets he lands on but, this time, the Krynoid infestation may be too unstoppable for even the Doctor to prevent...  

The Worlds of Doctor Who – Planet Krynoid: Nightfall is now available to purchase for just £19.99 (download to own) or £24.99 (download to own + collector’s edition 3-disc CD box set), exclusively here. Please note: the collector’s edition CD box set is strictly limited to 1,000 copies and will not be repressed. 

For a hundred years, Sunlight has been a beacon of hope shining across a troubled galaxy, an artificial paradise on a frozen world offering safe haven for the super-rich, and employment for even the poorest of labourers. At least, that’s what the adverts say. 

Unfortunately for Governor Robert Hodan, one of his engineers has just discovered a pair of strange-looking pods lodged in a satellite. So Sunlight, that glittering verdant oasis, will never be the same again. 

Because, as the Doctor knows only too well, on planets where the Krynoid gets established, the vegetation eats the animals… 

The three terrifying instalments in this box set’s story are: 

Sunlight by Jonathan Morris 
Sunset by Jonathan S Powell 
Darkness by Chris Chapman

The ensemble cast also includes Sarah Whitehouse, Ian Conningham, Nye Occomore, Joseph Ayre, Lucy Heath, Rakie Ayola, Melody Chikakane Brown, Chloë Sommer, Em Prendergast, and Ben Crowe. 

Lead actor Reece Shearsmith said: “It's a thrill to be part of Doctor Who, it’s an institution and it feels like you’ve made it as an actor if you're asked to be in this world. Hodan is a particular sort of character that Doctor Who is peppered with a lot of – cowards who have a noble intention but trample on people along the way. I've done one before actually, in Mark Gatiss’s TV episode Sleep No More. It’s a nice thing to play, because it's a very conflicted part.” 

Paul McGann added: “Doctor Who’s quite horrible, isn’t it, really? When you think about it, it throws up some proper disgusting horrors. Plants that eat people!  

“The best monsters work on a really visceral, almost childlike level. The Krynoids are like that. Who wants to be eaten by anything, never mind a huge plant?” 

The Worlds of Doctor Who – Planet Krynoid: Nightfall is now available to purchase for just £19.99 (download to own) or £24.99 (download to own + collector’s edition 3-disc CD box set), exclusively here. 

All the above prices (including pre-order and multibuy bundle discounts) are fixed for a limited time only and guaranteed no later than 31 May 2025. 

Please note that Big Finish is currently operating a digital-first release schedule. The mail-out of collector’s edition CDs may be delayed due to factors beyond our control, but all purchases of this release unlock a digital copy that can be immediately downloaded or played on the Big Finish app from the release date.