The TARDIS is gone. Stranded in one time and place, the Doctor, Liv and Helen seek refuge in Baker Street. But the house has changed: they now have neighbours – not all of them welcoming. And someone has a dire warning for the future. The Doctor and friends face their greatest challenge yet: living one day after another, in 2020 London. 1.1 Lost Property by Matt Fitton Trying to find a way to resume his travels, the Doctor calls in some old favours. As the residents get to know the new arrivals, something else finds its way into Baker Street, seeding suspicion. Helen meets a man with a very familiar face – and a terrible warning. 1.2 Wild Animals by John Dorney After weeks of London living, some of the TARDIS crew are finding it easier to adjust than others. Liv has found a new friend, but Helen is worried about the Doctor. And when a tragic crime takes place, the Time Lord must learn the limits of his powers. 1.3 Must-See TV by Lisa McMullin There are new arrivals in Baker Street: Sergeant Andy Davidson, and the helpful Mr Bird. The Doctor isn’t happy that someone else in the house is more useful than him. When the residents’ TVs start to malfunction, he suspects foul play. Someone is watching... 1.4 Divine Intervention by David K Barnes As the Doctor becomes desperate, Helen and Liv advise him to accept their situation. Liv makes a date - but gets more than she bargains for when the whole household comes along. And when a threat from the future finally arrives, the Doctor is placed in real danger. It’s time for the truth to emerge...

The TARDIS is still stranded but the healing process has begun. After living in Baker Street for months, the Doctor, Liv and Helen find their new friends becoming curious about who they really are. But is it wise to tell them, when their future – and their past – are filled with danger? And in the shadows, the Curator is watching. 2.1 Dead Time by Matt Fitton The Doctor wants to take the TARDIS on a test flight. But he has rather more passengers than he’d like. Soon, the crew are stranded once again in an uncertain future. One where planet Earth appears to be dead. And very soon, so will any visitors... 2.2 UNIT Dating by Roy Gill When the Doctor dips into his past to help TARDIS repairs in the present, Andy joins him on a trip to UNIT. In the 1970s, young soldier Ron Winters has just met lab assistant Tony Clare. But in 2020, they need Liv and Helen’s help when their memories start falling apart... 2.3 Baker Street Irregulars by Lisa McMullin The Doctor takes Zakia and Aisha to see some family history: their grandmother had her own secret life in Baker Street, during World War II. As Tania and Liv try to defuse an unexploded bomb, the sisters face explosive revelations of their own. 2.4 The Long Way Round by John Dorney Something is wrong with Earth’s future – so the Doctor decides to see it for himself. But very soon, the travellers are captured. Someone seems to know their every move. An interrogator wants answers, but do they even know the right questions?

After crashing in 2020 London, the TARDIS is healing. It can now take its passengers through time and space – but the future has changed around them. A sinister force steers humanity’s destiny, and as the Doctor and friends investigate the mystery they’re trapped inside, they may make the outcome even worse. 3.1 Patience by Tim Foley The Doctor decides to investigate the limits of the paradoxical timeline in which he and his friends are stranded. But they find themselves hunted by a force of mercenary Judoon. It seems that Earth’s altered history has changed the whole universe. 3.2 Twisted Folklore by Lizzie Hopley Tracking the course of the future, the Doctor and friends arrive on Rarkelia - where human forces rule. Earth – and Divine Intervention – are shaping the universe in their own image. Helen, Liv and Tania embed themselves in society, while the Doctor starts a revolution. 3.3 Snow by James Kettle Returning to London in the 2030s, the TARDIS travellers find a sinister elite taking hold. Baker Street now has just one lonely resident – and what’s more, it is the last place on Earth where snow ever falls. 3.4 What Just Happened? by John Dorney All actions have consequences. The path to victory or disaster is unclear, unless seen from a different perspective. With the lives of the entire human race at stake, the Doctor confronts a nemesis like no other. And not everyone will make it home.

After crashing in 2020 London, the TARDIS crew has found the future of the universe altered and the human race doomed. As the Doctor tries desperately to unravel the paradox, all roads lead back to Baker Street, and the greatest test of all. 4.1 Crossed Lines by Matt Fitton The Doctor interrupts a pivotal journey for young Robin, while Tania and Helen are caught up in events past and present. As the timeline dissolves and the Void encroaches, the Doctor’s friends ask the Curator for help. But he is not the man he was. 4.2 Get Andy by Lisa McMullin < The Doctor resolves to make a difference and save one life in particular. But someone else is making a beeline for Sergeant Andy Davidson. Mr Bird has something to prove, and he will go to any extreme to do it. 4.3 The Keys of Baker Street by Roy Gill Homing in on the root of the problem, the Doctor attempts a risky solution – and disaster strikes. Soon, 107 Baker Street is all that’s left of reality, as the residents climb the floors to face their destiny. 4.4 Best Year Ever by John Dorney What happens if the world is actually fixed? There are times when even the Doctor cannot help. And whatever the outcome, Liv and Tania have a decision to make.