The Unified Intelligence Taskforce – an international initiative to investigate and confront alien attacks across the planet Earth. From a secret headquarters in the Tower of London, the UK division is led by Kate Stewart (Jemma Redgrave), the daughter of the legendary Brigadier Lethbridge-Stewart, and an expert in combating the extra-terrestrial threats that seek to conquer the world.

UNIT: The New Series teams the UNIT chief with her onscreen assistant Osgood (Ingrid Oliver), a genius tech specialist and fan of the Doctor. Leading the troops is Colonel Shindi (Ramon Tikaram) a UNIT veteran who has led assaults on more aliens then he can name – ably assisted by Captain Josh Carter (James Joyce), a fearless young officer ready to take any risk in defending the Earth. Overseas, Kate deploys her international troubleshooter Lieutenant Sam Bishop (Warren Brown) to undergo secret engagements – with the fate of the entire world often resting on his shoulders.

Available to buy and download today, UNIT: Extinction pits the team against the terror of the Nestene Consciousness (voiced by Nicholas Briggs), a race of plastic-controlling entities first encountered in the classic Doctor Who story Spearhead from Space. With a new plan to enslave the world delivered to them by industrialist Simon Devlin (Steve John Shepherd), UNIT will need to call on forty years of experience if it hopes to hold the line! Check out the video trailer below:

Big Finish proudly present Jemma Redgrave, Ingrid Oliver, Warren Brown, Ramon Tikaram, James Joyce, Steve John Shepherd, Karina Fernandez, Tracey Wiles, Derek Carlyle and Nicholas Briggs in UNIT: Extinction – available to buy and download today for just £20 on either CD or Download.

Kate Stewart and UNIT will return in May 2016 for UNIT: Shutdown. Two further boxsets will follow at six month intervals. You can pre-order the entire series today as part of a UNIT Bundle, with a bundle of Big Finish's original UNIT series also available

You can find more upcoming adventures from the New Series of Doctor Who on our range page here – including brand new releases for John Hurt's War Doctor and David Tennant's Tenth Doctor!