Boris Johnson won his election campaign with the slogan "get Brexit done" but this will get him as far as the end of January when the UK leaves the EU. In this week's episode, Tim Marshall explores how British foreign policy, which has been overshadowed by Brexit since 2016, is now very much back on the agenda as he tries to strike trade deals around the world. The newly elected Prime Minister has set himself the task of agreeing a trade deal with the EU within a year. The balance he has to strike is getting what he wants from Europe without alienating other potential trading partners.