There are several separate plans to stop the UK crashing out. They include passing a law to mandate Johnson to extend article 50 to facilitate an election or second referendum; gaining support for revoking article 50 if there is no deal by 31 October; finding a way to bring the withdrawal bill back to the Commons; and defeating Johnson in a no-confidence vote before forming a caretaker government.
However, there are splits within the MPs fighting against a no-deal Brexit concerning the best plan, with some wanting to move straight to a no-confidence vote and others believing a legislative route to prevent a disorderly exit is the best option.
There is no agreement over who should lead a caretaker government – whether Corbyn or a veteran figure such as Ken Clarke or Harriet Harman. Nor is there agreement about what an extension to article 50 would be used for, such as a general election or second referendum.
A number of Conservatives and independent MPs have said they could not support Corbyn as leader of a caretaker government but the Labour leader has insisted he is the only suitable candidate for that role.
Labour insiders said the party was feeling under increasing pressure to bring an early no-confidence vote soon after parliament returns even if it is not winnable yet, as it could show the prime minister just how close he is to losing control of No 10 by pursuing a no-deal Brexit.
Meanwhile, rebel Conservative MPs are still working on legislative ways to mandate an extension to article 50, but some are despairing over whether that is possible and have been returning to examining ways to go back to Theresa May’s deal to test support for it against a no-deal Brexit.