Decision Time- The most important debate in the Commons for a generation

Sky News gets rare access to the Houses of Parliament for a look at what to expect for when MPs vote on the Brexit deal.

The debate in the Houses of Parliament is scheduled to run for 40 hours before a 'meaningful vote'.

It's the most significant debate to take place in the chamber according to insiders.

Sky's Beth Rigby tries to explain the process of the vote and how it could impact Brexit.