Watch exclusive revisits and catch up with Mary, Sarah and Justin from Series 2
The world gathers to remember the horror of the Holocaust with a moving ceremony at Auschwitz, as survivors return to honour the millions who died, 70 years on.
In Market Harborough, Phil meets John and Jane, whose house has been on the market for a year. And in the village of Countesthorpe, Elaine is struggling to sell the family home.
This episode follows cases where alcohol and relationship tensions mix in a dangerous cocktail. Investigating Officer Lisa Hutchinson says nine out of ten cases can be of domestic violence.
Gordon visits Connecticut's oldest inn, the Curtis House in Woodbury, which is run by a brother and sister who no longer speak to each other, leaving staff and guests stuck in the middle.