Ever since Meg passed away, Golly has been taking care of baby Cameron as a single parent, with the help of his daughter, Jess. Meanwhile, as spring returns to Glenbogle, the list of repairs to be done is endless and Paul finds himself face to face with a feisty young shepherdess named Iona.

Paul's goddaughter Amy shows up, a relentless troublemaker, and begins to shake up Ewan and Zoe's relationship. Then, Tam Cooper, a recently released convicted poacher returns to Glenbogle, creating havoc for Paul and Golly.

Ewan believes he's struck gold when he discovers that Amy has photographed a monster emerging from the loch. Although skeptical at first, Paul too soon finds himself captivated by the mystical creature and the magical power it seems to have.

Iona is stunned when her former fiancé, Malcolm McRae, comes to Glenbogle to help save the estate's forest from a spreading fungi. The surprise forces Paul to consider his true feelings for Iona while attempting to heal the damage in the woods. Meanwhile, Jess competes in the local Ghillie's challenge, as the only woman, with all odds stacked against her.

Emotions are running high. The bank can no longer wait for Glenbogle to pay off their debt, forcing Paul to sell the estate. Then, a wealthy stranger comes to buy the estate forcing the family to face their futures without Glenbogle. Meanwhile, Molly must decide between Golly and Killwillie, Donald must face up to his future, alone, Paul must confront his true feelings for Iona and Golly must confront his true feelings for Molly. All of this comes to a head, and a surprising visitor from the past lends a helping hand.