After dominating the opening period the Ducks took the lead when Dwight Marshall struck home his side's first penalty of the season.
However the complexion of the match changed just before the break when the visitors' David Coy inexplicably kicked out at Scott Honeyball off the ball and was quite correctly dismissed.
As often is the case Aylesbury failed to capitalise on the numerical advantage and Walton were soon level. Another strange penalty decision gave Paul Harkness the chance to level from the spot.
Within fifteen minutes things got worse for United as Scott Honeyball was beaten to a header by Scott Edgar and the ten men were in front.
Things looked bleak, but under this Aylesbury team were not ones to give up. Steve Clark rose well to head home an equaliser, before Aylesbury went ahead. Ollie Stanbridge crossed, Steve Clark went to head and may have got a touch, the keeper failed to clear and the ball appeared to be tucked home by Chris Bangura. Opinion is split on whose goal it was, but the important thing was Aylesbury were in front.
The fourth came courtesy of a second Dwight Marshall penalty as United went from a team with no chance to top of the league in the space of four crazy second half minutes.