Ewan and Donald find a German Second World War fighter plane at the bottom of the loch and when Paul's former army officer Alex Faversham comes to investigate the plane, he digs up some unwanted memories in Glenbogle.

Ewan is shocked when he finds his dad with another woman and learns that his parents are planning on separating. Meanwhile, Lucy's parents are coming over to meet Paul and begin to hint about the possibility of a future wedding.