The prime minister is considering a new plan to help break through the current parliamentary deadlock over Brexit.

The Malthouse Compromise was co-ordinated by housing minister Kit Malthouse, and has backing from leading Tory Brexiteers and remainers, including Jacob Rees-Mogg and Nicky Morgan.

It is unclear whether Theresa May intends to follow the compromise, and several areas of the plan have been met with criticism from the EU and some MPs.

Read more: Plan C Brexit proposal created by Tory Remainers and Leavers would be 'problematic' for Scottish Conservatives

Here's everything you need to know about the proposed plans:

What is the 'Malthouse Compromise'?

The proposal focuses on the backstop element of Theresa May's Brexit deal, and suggests a renegotiation on the current trading agreement. It recasts the backstop as a "free trade agreement-lite", and ensures all sides commit to no hard border. Its aim is to avoid customs checks on the Irish border.

Read more: Theresa May's Brexit options narrow as Tories' Malthouse Compromise kicked into long grass

It also brings forward the proposal that there should be an extended transition period for up to another year to December 2021.

HeraldScotland: Kit Malthouse - Conservative

Who is in support of the Malthouse Compromise?

The plan is backed by former Cabinet Minister Nicky Morgan, Solicitor General Robert Buckland and junior Health Minister Stephen Hammond on the Remain side.

Leave side backers include Jacob Rees-Mogg and Steve Baker from the European Research Group.

Will it work?

Tory MPs voted earlier this month to say they would support the withdrawal agreement on the condition that the backstop was taken out and replaced with "alternative arrangements", which is a large part of what the 'Malthouse Compromise' seeks to achieve.

The main issue facing those in favour of the compromise is convincing the EU of its importance. 

The EU have already ruled out a renegotiation on the backstop after MPs backed a previous plan to replace it.

Read more: EU accused of 'acting dishonourably' over Irish Border issue in Brexit negotiations

What next?

MPs are set to vote tonight on blocking a no-deal Brexit after Theresa May suffered a second defeat on her Withdrawal Agreement.

Read more: MPs to vote on blocking no-deal Brexit after Theresa May suffers defeat

If MPs vote to reject this no-deal, which is the expected outcome, a third vote is set to follow on Thursday on authorising the Prime Minister to request an extension of the two-year Article 50 negotiation process.