Rags, Riches and Liquidation: The Story of Gretna FC

What is the most impressive rise of a football team climbing through their respective nations league system? A quick answer would be that of Luton Town currently playing in the Premier League having been sat in the non-league system as recently as the 13/14 season, or perhaps AFC Bournemouth also playing in the Premier League who in 2009 were playing in League 2.

Both respectively excellent climbs through the divisions, but are they really that impressive? What if there was a team that had climbed up from the 4th tier of football in their nation, up to the top league? Stopping to pursue a European football opportunity whilst in the third tier?