Where might Brexit be taking the UK? Chris Morris takes a look beyond the daily news frenzy. As well as the withdrawal agreement currently being negotiated, there are much bigger questions now in play. What sort of economy, society and international links could the UK have? Journeying into this new world he discovers the possible destinations, the dramas to come why some are still clinging to the cheese sandwich theory of referendums. Producer: Chris Bowlby Editor: Hugh Levinson

Britain's EU membership has shaped the way its security agencies and police co-operate with counterparts across Europe. Chris Morris discovers how Brexit might affect this. How far will co-operation continue as before, especially in key fields such as counter-terrorism? Will access to key databases be lost, and will the transfer of data be more difficult? And will extradition be affected? Producer: Viv Jones Editor: Hugh Levinson

Could hundreds of thousands of EU citizens find themselves living in Britain illegally after Brexit? Free movement is one of the key aspects of the European Union's single market. It means that anyone from any of the other 27 EU countries has been free to come to Britain and look for work and British citizens are able to exercise a similar right in those countries. But as the prime minister has constantly emphasised, when Britain leaves the EU, free movement will end. Chris Morris discovers what this means for the estimated 3.5 million EU citizens who live in the UK now. Most of them will be able to stay under the government’s “Settled Status” scheme. They will need to apply for this status, however, having never before been required to register in the UK. And it’s believed that between 5 and 15 per cent of those needing to apply will fail to do so. Some won’t want to, others simply won’t know that they have to. So when the deadline expires in June 2021, several hundred thousand people who lawfully live in the UK may become illegal immigrants overnight. Could Britain be heading for a new Windrush moment? Producer: Tim Mansel Editor: Hugh Levinson

Hardly mentioned during the referendum campaign, the question of a hard border in Ireland has become crucial in the Brexit process. Chris Morris discovers how economics, politics and history all play a role in making this border so sensitive as the UK leaves the EU. Producer: Chris Bowlby Editor: Hugh Levinson

All the Brexit political noise leaves many asking - why has all this proved so tricky and taken so long? Continuing the series that's followed the twists, turns and quirkier moments in the Brexit saga, Chris Morris discovers what's really shaped the process. While the politics has dominated the headlines, what have we also learned about the deeper change the UK is now making? Producer: Chris Bowlby Editor: Hugh Levinson