A series which takes up the cause for people fighting for a fair deal

Magnus Magnusson examines the case of the Spanish Parents
A happily married Spanish couple have been denied all hope of living with their only son, now fostered with an English middle-class family. They're bewildered at their loss - after years of court cases and legal wrangling that has lasted for half their child's life.
How did this happen?
Is our present legal system the best way of deciding what is best for children or parents?