Marine biologist Hebe Harrison has vanished from the timelines and the Doctor and Mel must find a way of getting their new friend back! But little do they realise what perils lie ahead - or who stands against them... 1. Broadway Belongs to Me! by Matthew Sweet. The Doctor and Mel begin their search for Hebe in 1930s New York, where history is taking a dark turn all of its own. On Broadway, they discover a genuine aberration of the timestreams: Behold America! - a hot shoe show set in a future Fascist United States. Starring Melanie Bush. Opening tonight... 2. Purification by Chris Chapman. The Doctor and Mel follow the trail to a port in New Zealand, 1910. A ship is being prepared for a journey to Antarctica and the Doctor realises that this is Captain Scott's Terra Nova expedition. But this is merely the beginning of an intricate scheme to rewrite the future of humanity. 3. Time-Burst by Ian Potter. Tracking the anomaly that erased Hebe from history, the Doctor and Mel find an instability in Sheffield, 1864. Who is Mrs Virtue, the mysterious owner of the new steelworks? And can the Doctor untwist history before a natural disaster washes them all away...? CAST: Colin Baker (The Doctor), Bonnie Langford (Melanie Bush), Ruth Madeley (Hebe Harrison), Imogen Stubbs (Patricia McBride/Time-Suit), Rosalie Craig (Frances Drouet), Sophie-Louise Dann (Lydia Putti), Graham Vick (Julian Arnstein), Nicholas Pegg (Karel Lombard / Chorus Boy), Sam Stafford (Stagehand (Billy) / Bystander), Leah Brotherhead (Elizabeth Rodden / Martha Curtis), Jonny Weldon (Thomas Rodden), Greig Johnson (Jasper Woodward / Harbour Master), Luke R Francis (Patrick), Billie Fulford-Brown (Mary), Connor Williams (Colton), George Bukhari (Security), Martin O'Neill (Arthur Lee). Other parts played by members of the cast.

Steed and Dr Keel return to action in these three recreations of classic lost episodes. 6.1 THE FRIGHTENERS by Berkeley Mather, adapted by Rae Leaver. If you need someone scared off, you speak to the Deacon. Steed and Keel are on the trail of an intimidation expert whose services have recently been acquired by a wealthy businessman. But as they head deeper and deeper into this seedy world, who do they really have to stop. And who do they have to save? 6.2 DEATH ON THE SLIPWAY by Ian Potter, from a storyline by James Mitchell. When a fellow agent is killed, Steed is sent undercover at a government dockyard to find the killer. Can he sort the truth from the lies and track down the enemy infiltrator hunting for top secret plans before it's all too late? 6.3 TUNNEL OF FEAR by John Dorney, from a storyline by Terrence Feeley. Southend. A perfect spot for a family holiday - or for a traitor to hide. Somewhere in the town lurks a spy ring that is smuggling out classified information. When his old mole is attacked, and with innocent lives at risk, Steed takes Keel to the seaside for a far from sunny time.Episodes from the wiped first series of The Avengers recreated faithfully on audio - this set sees some real detective work piecing together the stories from the few clues remaining from before the episodes were lost. This full-cast audio drama is brought to life with eerily engrossing sound design and a brand new, cinematic music score. Starring Anthony Howell (Foyle's War, Dirk Gently, Dracula) and Julian Wadham (The Iron Lady, War Horse, Downton Abbey). CAST: Anthony Howell (Dr Keel), Julian Wadham (John Steed), Lucy Briggs-Owen (Carol Wilson), Hugh Ross (Sir Thomas Weller), Eve Webster (Marilyn Weller), Michael Lumsden (The Deason), Laurence Spellman (Moxon), Chris Pavlo (Nature Boy), Ferdy Roberts (Kolchek), Jon Culshaw (Sir William Bonner), Niky Wardley (Liz Wells), Barnaby Edwards (Sam Pearson), Dan Starkey (One-Ten), Pete Collis (Harry Black), Charlotte Strevens (Mrs Black), Amy Embank (Claire), Tony Turner (Wickram), Charles Davies (Maxie Lardner).

They say lights have been seen in the skies over Swammcombe. They say this is the place to spot flying saucers. Allison Williams is not so convinced. But maybe Allison Williams is wrong. When she witnesses a UFO launch from the top of a hill is it signs of alien activity or something more sinister? Counter-Measures are looking into Open Band -the disciples of the so-called Swami of Swammcombe, Lord Cavall. They’ve been monitoring Cavall since noticing a curious rise in psychiatric cases among his followers.How true are Cavall’s teachings? What happens during the elite `Visualisation’ sessions? And what does this all have to do with the King under the hill? Counter-Measures is a Big Finish spin-off using characters from a hugely popular Doctor Who story, Remembrance of the Daleks. This full-cast audio production, featuring movie-quality sound editing and effects contains brand new adventures confronting conspiracy and alien threats to the world! CAST: Simon Williams (Group Captain Gilmore), Pamela Salem (Rachel Jensen), Karen Gledhill (Allison Williams), Hugh Ross (Sir Toby Kinsella), George Watkins (Bob), Jessica Regan (Patricia / Daisy), Kate Russell-Smith (Cook / Nurse), Tim Bentinck (Lord Cavall). Other parts played by members of the cast.

Vortex Ice / Cortex Fire is one of three main range 2017 Doctor Who titles consisting of two two-part stories, in a change from the usual four-parters. Vortex Ice by Jonathan Morris. In search of 'exotic particles', the Doctor and Flip arrive 700 feet underground, in a mine in Northern Mexico - only to run into a scientific expedition. Among their number, an exobiologist. They're all on the hunt for alien life! Deep underground, the team finally uncovers a cave of vast crystals - like ice, despite the heat. And inside the crystal: something frozen. Something trapped in time. If only it were something simple, like a monster. But it's far, far worse than that. Cortex Fire by Ian Potter. The Doctor brings Flip to the futuristic city of Festin, the best vantage point to witness a unique astronomical light show. In a city governed by the all-powerful network known as the Cortex, they're soon identified as outsiders - nihilists, perhaps, responsible for a wave of terror that's been sweeping the city...But the truth is different. The people of Festin are burning up. Spontaneously combusting. And no-one knows why. Star Colin Baker played the Doctor on television between 1984 and 1986, and has found a new legion of fans through his work with Big Finish. Lisa Greenwood plays companion Phillipa "Flip" Jackson, and will be familiar to some from TV shows such as Call The Midwife, The Hours and Eastenders. CAST: Colin Baker (The Doctor), Lisa Greenwood (Flip Jackson), Shobu Kapoor (Sai Chopra), Orlando Seale (Dylan Argent), Monty D'Inverno (Jannik Woolf), Rebecca Todd (Khoralla), Simon Kane (Halus), Eve Webster (Bav/ Cortex/ Enforcer).

Star Cops debuted on BBC2 in 1987, the brainchild of Doctor Who and Blake's 7 writer Chris Boucher, aimed as a police procedural set in the new frontier of commercialised space exploration. It's the near future, and mankind has expanded its presence in space. Maintaining law and order among this network of space stations, satellites and moon outposts is the responsibility of the International Space Police Force, known colloquially as the Star Cops. Their leader is Commander Nathan Spring. While dealing with crimes including drug smuggling and murder, the Star Cops find themselves facing a new and sustained threat. The activist group Mother Earth, ideologically opposed to humanity's presence in space, has been quiet for some time. But no longer. The group returns with a vengeance, prepared it seems to go to any lengths to achieve its aims. 1.1 One of Our Cops is Missing by Andrew Smith. As construction of the Vasco da Gama, the largest space station ever put into orbit, nears completion, Nathan is visited by an old friend, who asks for his help in tracking down a missing undercover officer. Meanwhile, Inspector Priya Basu is investigating a near-fatal spacewalk accident on the space station Rakesh Sharma that may be no accident at all.1.2 Tranquillity and Other Illusions by Ian Potter. A murder at the historic scene of the first Apollo moon landing offers few clues for the Star Cops. Why would anyone want to kill Philip Hughes, a property entrepreneur? And what has become of the mysterious woman who was with him at the time? The investigation leads to a moon outpost, where anyone may be the killer. 1.3 Lockdown by Christopher Hatherall. Tech Tower is a state of the art, high - security, high-technology building located in Paris. It seems the ideal venue for an international conference on how to counter the growing threat from the Mother Earth group. Nathan and Priya attend as representatives of space policing. Soon, they and everyone else in the building find themselves in danger as a disruptive attack by Mother Earth coincides with a plot by criminals to carry out a high stakes robbery. 1.4 The Thousand Ton Bomb by Guy Adams. A failed bombing of Moonbase provides the Star Cops with an opportunity to strike back at Mother Earth. Paul Bailey is called on to use his undercover skills once more. But Mother Earth is about to escalate its campaign of violence with a spectacular attack. And the Star Cops are among those in the firing line. The series hero Nathan Spring is played by David Calder, one of Britain's most regarded stage and screen actors. He is joined by several new characters created for these fresh Star Cops adventures, with Priya Basu played by Eastenders regular Rakhee Thakrar. CAST: David Calder (Nathan Spring / Box), Trevor Cooper (Colin Devis), Linda Newton (Pal Kenzy), Rakhee Thakrar (Priya Basu), Philip Olivier (Paul Bailey), Andrew Secombe (Brian Lincoln), Ewan Bailey (Martin Collyer), Nimmy March (Shayla Moss), Delroy Atkinson (Charles Hardin), Zora Bishop (Armina Hamid), Mandi Symonds (Caroline / Mother Earth), Tim Scragg (Ashton / Hughes), Amerjit Deu (Rez Varughese / Gish), Gabrielle Glaister (Joanne Stack / Janine), George Asprey (Alby Royle / Steven Moore), Andy Snowball (Danny Neal / Pan-Pacific President), Sophie-Louise Dann (Simone Babin).