King's Lynn Town overcame Alvechurch 3-0 this afternoon to set up a 'Super Play-off' with Warrington Town.
The winner of that match - to be played on Saturday - will be promoted to National League North.
Meanwhile, Metropolitan Police and Tonbridge Angels will square off in the other Step 3 'Super Play-off'.
Met Police beat Poole Town 1-0, while Tonbridge saw off Mertsham Town 2-0.The winner of that match will be heading to National League South.
Met Police beat Poole Town 1-0, while Tonbridge saw off Mertsham Town 2-0.The winner of that match will be heading to National League South.