You're with your loved one, or they're away from home in another country. Out of the blue they disappear. What do you do? What do the police and local authorities do? Where are they? What's happened? Are they alive or are they dead? Why have they vanished? Each episode of Last Seen On Holiday takes us deep inside a gripping mystery. A case of a British or American citizen who disappeared when they were away from home, abroad. Whether on holiday or working, each story will reveal the turmoil that families and friends go through when they don't know where their loved one is.