At this point, the two winning finalists face each other in the combined final for the honour of the trophy.
Doncaster Rovers were the defending champions, but lost to Grimsby on penalties in the Third round.
Should the scores be level after 90 minutes, the match entered a penalty shootout phase, with no extra-time being played.
Again, there were eight one-legged matches in each section (North and South), with a penalty shootout if a draw occurred after 90 minutes.
The teams that received byes in the Northern section were Bury, Carlisle United, Darlington, Leeds United, Lincoln City, Port Vale, Rochdale and Stockport County, while Barnet, Brighton & Hove Albion, Bristol Rovers, Cheltenham Town, Gillingham, Hereford United, Milton Keynes Dons and Wycombe Wanderers received byes in the Southern section.