Married couple Dan and Alison aim to answer the questions, pick the right strategy and leave with a fortune as they tackle the mighty Wall.

The Wall welcomes two celebrity guests tonight in the first of three special episodes.

First up are broadcaster Stacey Dooley and infamous Strictly Come Dancing judge Craig Revel Horwood, who will be battling it out for the chance to win serious cash for their chosen charities.

Stacey will be in charge of the balls. Craig, in insolation, answering the questions. But the real question is - can he handle been locked up for so long with only himself for company? Let's hope so, as they don't want to wipe out.

Host Danny Dyer will be on hand to guide them through their challenge, with questions voiced by TV legend Angela Rippon.