Axos has been freed from the time loop, and is plotting to drain Earth's energy. Without the Doctor's help to stop the powerful space parasite, UNIT are forced to rely on a multipersonality renegade Time Lord... known as the Eleven. UNIT Chief Kate Stewart and her squad now have to confront her father's past foe...Contains four new adventures: 3.1 The Vulpreen Encounter by Andrew Smith When a forty-mile long asteroid drifts into the solar system, Osgood and new UNIT recruit Lt Jimmy Tan are sent to investigate on board the newly-built UK spaceship Starseeker. Kate Stewart visits a UNIT safe house in Norway where Jacqui McGee is recovering from the trauma of her experiences at the hands of the Vulpreen. She needs Jacqui's help against the Vulpreen threat - but can she be trusted? 3.2 By Jacqui McGee by Lisa McMullin As Kate Stewart and the UNIT team race to escape a Vulpreen assassination squad, Jacqui McGee uploads the most important report of her career. Vulpreen Commander Krillen is coordinating a hostile operation across planet Earth. But are the Vulpreen planning an immediate attack, or do they have something more sinister in mind? 3.3 Axos Unleashed by Katharine Armitage With the threat of a Vulpreen invasion imminent, a new menace presents itself in the shape of golden humanoids. A foe from UNIT's past. Axos has escaped the Time trap it was placed in years before and has returned to feed off the Earth. 3.4 Time of the Vulpreen by Roland Moore UNIT coordinates a worldwide response to the arrival of Vulpreen Arches across the globe. Troops stand ready to face the invaders. Kate Stewart and Osgood form an uneasy alliance with the Eleven to destroy the time fields that protect each Arch and which are being used as a devastating weapon by the Vulpreen. But when the invasion starts, the odds may be stacked too heavily against them... CAST: Jemma Redgrave (Kate Stewart), Ingrid Oliver (Osgood), Mark Bonnar (The Eleven), Eleanor Crooks (Naomi Cross), Daniel Easton (Daniel Hoyer/Vulpreen Deputy), Richard Goulding (Axos/Axons), Chris Lew Kum Hoi (Lieutenant Jimmy Tan), David Holt (Commander Krillen), James Joyce (Captain Josh Carter), Glen McCready (Vulpreen), Suan-Li Ong (Yang Li/Private Burgess), Alisdair Simpson (Lord Varliss), Sam Stafford (Private Moorey/Butler), Tracy Wiles (Jacqui McGee). Other parts played by members of the cast.

Threats to our planet come in many forms. Some are alien visitations, some lay dormant in the Earth itself, and occasionally, danger arrives with a big gun and fantastic hair. Whatever the threat, whoever the enemy, UNIT is ready to defend the world. 8.1 This Sleep of Death by Jonathan Morris. Abbey Marston. UNIT’s dark secret. A place where the laws of space and time, life and death, can be suspended. Where remembering the departed has consequence. When UNIT faces a threat from a dead man, Kate has no choice but to return to Abbey Marston once more, to disturb the sleep of death. But the Static are waiting… 8.2 Tempest by Lisa McMullin. When the planet’s weather systems start behaving strangely, Osgood is worried. Soon, she and Sam Bishop are heading to a remote Scottish island where an eccentric old woman speaks to the wind itself. Meanwhile, Kate Stewart visits a deep-sea oil-rig where strange things are afoot. A tempest is coming, and it could be disaster for the entire world. 8.3. & 8.4 The Power of River Song by Guy Adams. Part 1: UNIT has been assigned to monitor the switch-on of a revolutionary new power system – they know from experience such things can be tricky. Nearby, Osgood and Lieutenant Bishop investigate mysterious disappearances - and appearances of trans-temporal phenomena. Kate would like to ask the Director some questions, but she’s proving strangely elusive… until there’s a murder. Part 2: There’s a dead body in the power station. River Song is the prime suspect. And Kate is most concerned by the identity of the victim. Meanwhile, Sam and Jacqui chase Vikings, while Osgood finds herself out of time. As deadly focus their attention on Earth, it seems activating the power of River Song could spell the end of everything... CAST: Jemma Redgrave (Kate Stewart), Ingrid Oliver (Osgood), Alex Kingston (River Song /The Director), Warren Brown (Lieutenant Sam Bishop), James Joyce (Josh Carter), Andrew French (Sergeant Warren Calder), Ajjaz Awad (Private Meghan Coates), Hywel Morgan (Jeff / Barney), Alexandra Mathie (Mother McCracken), Chris Jarman (Joel Sanders), Tracy Wiles (Jacqui McGee), Enzo Squillino Jnr (Mr Chant), Leighton Pugh (Leif / Wampeerix).

Launching with 2015's Extinction, UNIT - The New Series was the first Big Finish range to use characters from the BBC's mega-hit 21st century relaunching of Doctor Who! Jemma Redgrave and Ingrid Oliver reprise the popular characters of Kate Stewart and Petronella Osgood as seen on TV in stories such as the globally cinema-screened Doctor Who - Day of the Doctor. This is the second of a new four-box-set arc of adventures.

Kate Stewart and her UNIT team investigate and confront alien attacks on the planet Earth in this new five disc boxset. Contains four stories: 6.1 Game Theory by Matt Fitton, 6.2 Telepresence by Guy Adams, 6.3 Code Silver by Guy Adams, 6.4 Master of Worlds by Matt Fitton. Launching with 2015's Extinction, UNIT – The New Series was the first Big Finish range to use characters from the BBC mega-hit 21st century relaunching of Doctor Who! A thrilling full-cast audio with cinematic sound design and music starring Jemma Redgrave and Ingrid Oliver who reprise the popular characters of Kate Stewart and Petronella Osgood as seen on TV, in stories such as the globally cinema-screened Doctor Who - Day of the Doctor. This set has some fan favourites – from Sir Derek Jacobi reprising his chilling take on The Master from the TV version of Doctor Who, to a long-awaited confrontation with iconic monster the Cybermen! CAST: Jemma Redgrave (Kate Stewart),Ingrid Oliver (Osgood), James Joyce (Captain Josh Carter), Ramon Tikaram (Colonel Shindi), Warren Brown (Sam Bishop), Derek Jacobi (The War Master) and Nicholas Briggs (The Cybermen).

Kate Stewart and her UNIT team investigate and confront alien attacks on the planet Earth in the new 5 disc boxset. Something is stirring, an old foe to those in UNIT with a long memory. And fortunately, to face an old foe...There are old friends. 4.1 Call to Arms by Matt Fitton.Mike Yates braves a stormy night in the Lakes to help celebrate a milestone for John Benton. An evening of fond reminiscences of old glories and friends awaits. But a long-buried past is about to catch up with them. Meanwhile, on the rain-lashed moors, what begins as a routine mission for modern-day UNIT quickly becomes a fight for survival. 4.2 Tidal Wave by Guy Adams. When an experimental tidal power generator needs its eco-friendly credentials checked, Kate Stewart calls in an expert. Soon, Jo Jones is bound for 'Project Charybdis' in the South Atlantic, along with an awestruck Osgood. But out at sea, a treacherous plan is set in motion to awake an ancient race. Beneath the seabed an army is sleeping - an army of Sea Devils! 4.3 Retrieval by Guy Adams. As the Earth's primeval rulers reclaim their birthright, UNIT must stand against them. And Kate Stewart and Osgood must venture into a Mediterranean stronghold to retrieve a means to fight back. But a Silurian warrior is on their trail. Once she has the humans' scent, Commander Tryska will never give up the hunt. 4.4 United by Matt Fitton. The Silurians hold Great Britain under siege. Grand Marshal Jastrok rules the seas and the skies with reptile forces. On the ground, Commander Kalana crushes all ape resistance. With Kate Stewart trapped, defence of the realm falls to UNIT's old guard. Jo Jones, Mike Yates and John Benton are ready to do their duty and stand united. Launching with last year's Extinction, UNIT - The New Series was the first Big Finish range to use characters from the BBC mega-hit 21st century relaunching of Doctor Who! In this thrilling full-cast audio with cinematic sound design and music, Jemma Redgrave and Ingrid Oliver reprise the fan-favourite characters of Kate Stewart and Petronella Osgood as seen on TV in stories such as the globally cinema-screened Doctor Who - Day of the Doctor. The set's foes - Silurians and Sea Devils -are some of Doctor Who's most popular monsters. This is the first time the Sea Devils have appeared in a Big Finish production in nearly 14 years, something highly anticipated by the TV show's fans. CAST: Jemma Redgrave (Kate Stewart), Ingrid Oliver (Osgood), James Joyce (Captain Josh Carter), Ramon Tikaram (Colonel Shindi), Fernandez (Captain Gonsalves/ Phoebe Breckenridge), Lucy Fleming (Alice Donelly), Matthew Cottle (Ben Donnelly/ Overseer), David Jonsson (Corporal James Morley), Dan Starkey (Marshal Skar/ Commander Merx/ Sontaran Escapee), James Wilby (Professor John Torrance), Beth Goddard (Christine Colley) and Nicholas Briggs (The Daleks).

As if the alien Vulpreen weren’t enough, what remains of UNIT faces another formidable adversary. The mercurial Time Lord Missy is on the side of the Vulpreen, helping and encouraging them in their ambition to become the rulers not just of Earth, but of all Space and Time. Contains four new adventures: One Way or Another by John Dorney. Kate leads an attack on a Vulpreen prison camp, unaware that UNIT friends are being held there. As paths converge, Kate and Osgood have different perspectives on the attack, and specific dangers to overcome. Traitors’ Gate by Sarah Grochala. Osgood is a prisoner in the Tower of London, which is now a Vulpreen base. To rescue her friend, Kate must devise a plan to raid her former headquarters. Inside the Tower, the Vulpreen are determined to access the Black Archive and the hugely dangerous alien technology it contains. How long can Osgood keep them out? The Destiny Labyrinth by Alison Winter. The UNIT team find themselves traveling through various epochs in Earth’s history. The only guide they have is working for the enemy, and the Vulpreen are hot on their heels. Help comes from a new friend, a young healer who already has a curious relationship with time. True Nemesis by Andrew Smith. Under Missy’s guiding hand, the Vulpreen are ready to strike out, to establish themselves as the new Masters of Time. UNIT’s confrontation with Missy in the depths of Portugal’s Douro Valley will decide the fate of not just the Earth but the whole Universe. CAST: Jemma Redgrave (Kate Stewart), Ingrid Oliver (Osgood), Michelle Gomez (Missy), Eleanor Crooks (Naomi Cross), Chris Lew Kum Hoi (Lieutenant Jimmy Tan), James Joyce (Josh Carter), Christopher Naylor (Harry Sullivan), Alisdair Simpson (Lord Varliss), Glen McCready (Bert Hockley / Jesden / Vulpreen Commander), Harriet Kershaw (Sorgan), Stewart Scudamore (Ashley Bassett), Donna Berlin (Lorraine Forrester), Oscar Batterham (Michel), Fiona Hampton (Kini), Harry Myers (Hugo da Costa / Crastor). Other parts played by members of the cast.