Season: 4 | Episode: 6 | Length: 60m

A chance to catch up with some of the families from series two and three, revealing what happened when the cameras stopped rolling. For all three pairs, it turns out the experiment has drawn them closer together - most now see each other almost every day and are the closest of friends, including some of the children. This documentary looks back at the most moving and amusing moments of their life swaps and also finds out where they are now.