Three years after a referendum in which Britain voted to leave the European Union, the UK is gripped by uncertainty over how, or even whether, it should put an end to its 46-year membership of the bloc.
Theresa May's deal negotiated with Brussels has already been voted down twice by parliament, but the government is widely expected to present it for a third time on Thursday to ensure an orderly Brexit.
EU leaders have said Britain could leave the EU on May 22nd if the deal is adopted this week, or face a potential no-deal Brexit as early as April 12th.
Indicative votes after parliamentary power grab
In a bid to find Brexit alternatives, lawmakers took the unprecedented step on Monday of seizing control of Wednesday's parliamentary business.
MPs will hold a series of "indicative votes" -- indicating their preferences on a piece of paper -- for different Brexit outcomes, although the Prime Minister is not legally-bound to follow their instructions.
The proposals put forward include a customs union with the EU, remaining in the single market, holding a second referendum or stopping Brexit altogether by revoking Article 50 - the formal notification for departure.
The alternatives that will actually be voted on will be selected by speaker John Bercow later this Wednesday and voting will take place this evening with the results expected at around 21h00 GMT.
Time has been set aside next Monday to try and whittle down the most popular options into a final plan.
'Get it over the line'
Parliament's unprecedented seizure of power was spearheaded by pro-EU MPs, who want to either reverse Brexit or preserve much closer economic ties with the remaining 27 states.
Three members of Theresa May's government resigned in order to vote for the move, further piling pressure on their leader.
However, May did receive a boost on Tuesday when leading Brexiteer Jacob Rees-Mogg suggested he could back her deal in order to make sure the whole process was not stopped.
Fellow Brexit supporter Boris Johnson has already indicated that he could back the deal, but only if May agrees to resign, raising suggestions that she could announce plans for her departure at a meeting with Conservative MPs later today.
Ulster says no to 'Toxic Brexit'
However, Northern Ireland's Democratic Unionist Party, who prop up the UK's Conservative government, have poured cold water on the deal.
The DUP's Brexit spokesman Sammy Wilson has said his party would rather see a one-year Brexit delay.
Writing in The Daily Telegraph newspaper, Wilson underlined "even if we are forced into a one-year extension, we at least would have a say on the things which affect us during that time and would have the right to unilaterally decide to leave at the end of that one-year."
He added "we won't let the PM or the Remainer horde in parliament bully us into backing a toxic Brexit."
Britain was originally due to exit from the EU on March 29th, and MPs will vote today to formalise the extension into law.
Extended Brexit from the EU?
The uncertainty around Brexit, the United Kingdom's most significant political and economic move since World War Two, has left allies and investors aghast.
Earlier this Wednesday, head of the President of European Council Donald Tusk urged the European Parliament to be open to a long Brexit extension and not to ignore the British people who wanted to remain in the EU.
Speaking in Strasbourg, Tusk said "You cannot betray the six million people who signed the petition to revoke Article 50, the one million people who marched for a People's Vote, or the increasing majority of people who want to remain in the European Union."
Britons voted 52-48 percent to leave the EU in the 2016 referendum.