It tells the tale of Welsh Marxist, activist and Sunday school teacher, Shan Ashton. It's a brief, but very enjoyable watch.
As ever the BBC persist with the tiny and clunky Real Player system for their movies - surely outdated in the YouTube age.
If you can't get it to play then you can at least read the transcript here which includes this quote about how working in Nicaragua touched Shan's life:
"..here (in Nicaragua) I met real revolutionaries and found that, ultimately, revolution means learning. The people were building schools and universities... not distant acadamies on hills but community places for all. People worked together, learning as they went along, the enjoyment was palpable.
"Back home, I eagerly turned my work upside down and inside out. The learning I am now a part of is engaged, collaborative, political and cheeky."The best revolutionaries have fun, what's the point if there's no joy?"