Conolly reveals their tragic recent history as he tries to secure the future for his family. More than a half of century of neglect has left the formerly beautiful Drenagh Gardens overrun by bamboo, laurel and other non-native species. Conolly has a plan to restore the estate to its former glory and open a new visitor centre and café.

Conolly McCausland is in race against time to have the walled garden finished before the grand opening and to have paying customers so that he can try and get the estate finances back on an even keel. Alongside the estate renovation, Conolly has been researching the history of his Ulster-Scots family and historian Dr William Roulston reveals whether an ancient Scottish title used by the first McCauslands to arrive in Ireland could be reinstated.