Theresa May faces a series of crunch Commons votes on Tuesday which could dramatically alter the entire Brexit process.
But will this be a “high noon” moment or just another staging post in the chaotic impasse gripping parliament?
The frustrating, but honest, answer is that it completely depends on what happens.
By the end of Tuesday, Brexit could be on the verge of being delayed, Theresa May could have a mandate to ask the EU for fresh concessions on her deal, or we could be one step closer to no deal.
So how will it play out?
Factions of MPs have put forward a range of rival plans they hope will provide a solution to the Brexit mess, in the form of amendments.
Commons Speaker John Bercow will be poring over these amendments and deciding which of them he will select for MPs to vote on.
He is expected to choose around six, and will take into account how many MPs have so far indicated their support for each plan in making his decisions.
Those selected will then go forward to a vote in the House of Commons.
If MPs approve certain amendments they could have a big impact on Brexit.
So which plans have a chance, and what effect will they have?
Labour MP Yvette Cooper’s amendment to delay Brexit and avoid a no-deal scenario is the most dramatic.
Put simply, it would upend longstanding parliamentary procedures to allow MPs to compel the prime minister to extend the Article 50 Brexit process beyond the planned EU leaving date of March 29, if May has not passed a deal by February 26.
The Cooper amendment would appear to have enough support from Tory Remainer rebels to pass, as long as Bercow selects it and Labour throws its full weight behind the plan, which seems likely given Jeremy Corbyn’s desire to rule out a no-deal Brexit.
Votes on Brexit ‘plan B’
Dominic Grieve’s amendment would again rip up Commons procedures to…