"The Loudest Mission: Relative Chaos" (often shortened to just "Relative Chaos") is the seventy-sixth episode of The Loud House. It premiered in the United States on May 29, 2017. It was written by Sammie Crowley, Daniel Dominguez, and Whitney Wetta, directed by Chris Savino, and storyboarded by Miguel Puga and Jordan Rosato.
In this episode, Ronnie Anne, Bobby, and their mother head to the city to spend a couple days with their zany relatives, the Casagrandes. While Bobby has a great time fitting in, Ronnie Anne struggles to tolerate any of their exuberant behaviors. However, there's another reason why the three are visiting their relatives, and it's something Ronnie Anne has never expected.
Fun fact: This is one of the few episodes to permanently alter the status quo of the show, as the Santiagos don't live in Royal Woods anymore.