It's going to be another crazy day in Westminster.
Last year, the Government's Brexit strategy was thrown into disarray after Parliament took control of business, allowing them to put forward legislation to prevent the UK leaving the EU without a deal.
On a nightmare day for Prime Minister Boris Johnson, the after one MP defected to the Liberal Democrats and another 21 voted with the opposition.
Things aren't going to go back to normal today.
The Government is staring down the barrel of another defeat and by the end of the day a general election may have been called.
Here's what to expect and when to check in for the big moments throughout the day.
12pm - Prime Minister's Questions
In what will no doubt be one of the rowdiest sessions in a long time, in the Commons to start the day.
The pair may well end the day agreeing to run against each other in a snap general election so this could be the unofficial starting gun for the longer competition ahead.
12.45-3pm - Spending review
Chancellor Sajid Javid is due to set out new spending plans in the Commons early this afternoon.
This would usually be the biggest story of the day but has been almost forgotten amidst the political upheaval.
3pm - Brexit debate
The debate which caused all the fuss on Tuesday is due to begin at 3pm.
MPs opposed to the Government's Brexit plan seized control of the parliamentary timetable in order to bring forward a bill to block a no-deal exit.
All eyes will be on whether the Tory rebels who were kicked out of the party will go through with it and inflict a second defeat on the Government as expected.
5pm - First votes on Brexit bill
MPs will vote on whether or not to block a no-deal for the first time.
7pm - Final Brexit vote
MPs will then vote on the second reading of the bill before it's sent off for further scrutiny in the Lords.
Dozens of amendments have been table by peers loyal to the Prime Minister in an effort to delay the process and kick it in to the long grass so members have been turning up armed with duvets and food expecting an all-night sitting.
If the opposition effort is successful, the legislation could be brought back to the Commons to be passed on Thursday or Friday ahead of Parliament shutting down next week.
8pm - General election vote
If the above all happens as expected and the Government loses, Mr Johnson has said he will go to the Commons and put forward a motion for a general election as early as mid-October.
That would cause Parliament to be dissolved and kill the no-deal legislation before it becomes law.
As it stands, opposition MPs may block the attempt because they believe the bill to block a no-deal Brexit to be allowed to pass into law before an election is called.
The Government need two-thirds of MPs to back an election but it looks far from certain they'll get anywhere near that - but that could all change by tonight.
