Magic is in the air when twins Allie and Jay Cameron travel to Scotland to visit their ancestors' ancient Castle Keep, tucked away on an unspoiled loch. The twins are thrilled to wake the mischievous, shape shifting Boggart and his infamous cousin, Nessie, the Loch Ness Monster! But their summer of fun loving trickery is suddenly invaded by a ruthless real estate developer named William Trout. Trout has big plans to bulldoze the area and build a massive luxury resort, showing zero regard for the locals, the law, or the beautiful seals that call the loch home. As the bulldozers roll in, Allie, Jay, and their grandfather mobilize to save the land. But they quickly realize they need a different kind of help. In a hilarious race against time, the Boggart recruits terrifying creatures of the Wild Magic, including the Blue Men of the Minch. Mr. Trout is in for a wild ride as the magical Old Things of Scotland fight back to protect their home!