Trixie and her fellow lumberjills are back in Scotland, newly stationed at the MacKay estate. When they arrive, they are shocked to find the place dilapidated and neglected and the taciturn and secretive Noah MacKay not at all happy to be meeting them. It quickly becomes apparent that MacKay was expecting men from the forestry commission to take charge, rather than four young women. Trixie, Jo, Hen and Vi decide he needs to be proven wrong - after all, don't they have stamina, skill and strength? But as the girls work to prove their worth, secrets from their own pasts threaten to follow them to Sutherland.