Louisa throws herself into running her boarding house, but mysterious guest Lazaros Vangelatos places the villa under police scrutiny.

Louisa finds herself fending off unexpected romantic advances. Leslie's arranged hunt for new guest, Colonel Ribbindane, doesn't quite go to plan when his past revisits him.

Louisa's plan for a family picnic to Kalami goes awry when she inadvertently invites Spiros's wife. The Durrells are surprised to discover Captain Creech's new business venture.

With the house guests getting ever more rowdy, Louisa worries about the villa's reputation. Margo finds a surprising way to bond with Maud, while Gerry realises he has feelings for Galini.

The residents of Corfu are excited at the prospect of an imminent official visit from the King of Greece, and the Durrells are keen to get themselves involved with the welcoming committee. Leslie takes over leadership of a scout troop. Love may also be in the air for Margo as she makes her return home to the island.

With storm clouds gathering, the islanders realise they can no longer ignore the rumblings of war, just as it looks as though the Durrells - particularly Louisa and Spiros - may have found their happy ending. Larry marks his return by throwing an audacious play for the locals, but there are surprises for every member of the family. Series finale.