On Tuesday, British lawmakers will vote on whether or not to try to take control of the Brexit process in a series of crunch votes which threaten to pile more pressure on Prime Minister Theresa May.
With the Brexit deadline merely 60 days away, MPs will vote on the PM's 'Plan B', which she presented in front of the parliament last week after her initial deal was comprehensively rejected on January 15.
The MPs will also vote on amendments that will indicate whether lawmakers have the numbers to instigate a legally-binding parliamentary takeover of the process.
One amendment would open the door for the Remain-dominated House of Commons to bring in legislation preventing Britain leaving the European Union without an official deal on March 29.
It would force Theresa May to delay Brexit for nine months if her deal is not approved before February 26, and give lawmakers the ability to indefinitely extend the deadline.
Also, increasing numbers of government ministers have warned they will not accept the prospect of Britain leaving without a deal, which would sever all ties with its largest trading partner.
Conservative leader May is seeking to salvage her agreement and hopes to win over MPs in another future ballot, despite losing the last by 230 votes.
The government said that this second "meaningful vote" would also be amendable, possibly convincing some MPs not to take any drastic action on Tuesday, knowing they will have another chance.
Meanwhile, parliamentary experts have warned that MPs' efforts may be unconstitutional.
Theresa May's plan B depends more or less on convincing the EU to reexamine the existing deal's backstop proposal, which could see Britain tied to the bloc's trade rules to keep open the border with Ireland.
An amendment potentially up for a vote on Tuesday would call for her to go back to Brussels and secure changes to the backstop.
While May reportedly told Tory MPs during a meeting on Monday that the government will support the measure and would order them to follow suit, a pro-Brexit group of Conservative lawmakers led by Jacob Rees-Mogg said they would not back the move because it does not force the reopening of the withdrawal agreement.
If passed, the amendment could put pressure on Brussels to reopen the deal by offering a clear path through the current impasse.
But the EU has consistently said there will be no major changes to the deal and on Monday accused Britain of risking a no-deal Brexit "by accident".
Meanwhile, MPs in favour of another referendum pulled their amendment after it crucially failed to win the support of Labour leader Jeremy Corbyn, although the idea will remain on the backburner if Brexit is delayed.
However, not all amendments will be put to a vote, 7:00 pm (1900 GMT) onwards on Tuesday.
At the outset, Theresa May's office has said it was considering extending House of Commons hours and cancelling MPs' week-long February holiday to make time to pass all the laws needed to prepare for Brexit.