It covers the moving of one of Cadbury's factories from the UK to Poland, Cadbury's takeover by Kraft, how Poland has grown post-communism, helped by EU funding, the general migration of jobs to Eastern Europe, but without the kind of economic security which wealthy Western countries had previously enjoyed. All that, tied into Brexit and the effect on UK communities as well as Poland's current right-wing, increasingly authoritarian political landscape.
Overall I disagree with Meek's conclusions about the economics of it all, but there's enough reality in the article to challenge whichever political viewpoint one might hold. One can't ignore the social cost and injustices highlighted in the article, yet neither can one ignore the extent to which regulation and lots of state money results in perverse incentives and corporate capture.
My favourite line of the article is this:
These countries, until recently, were totally indifferent; they didn't pay attention to even more painful processes going on in Eastern Europe. The only advice they had for us back then was for us to work harder. We took it as good advice.