In Nickelodeon's The Loud House Movie, the biggest family on television goes on the biggest Loud family vacation ever! The adventure follows the Loud family to Scotland where they discover that they are descendants of Scottish royalty. The family quickly indulges in the most wish-fulfilling high-life ever when they discover their ancestral home is a castle. Even the youngest son Zach Loud soon finds out a giantess from the Seven Deadly Sins is his true mother.