The Louds travel to London when Luna receives an invitation to Mick Swagger's knighting ceremony but get caught up in a special mission when Lincoln runs into a familiar face.

The Louds journey to Naples Italy to taste the world's best pizza, made by a secretive and legendary chef. When Lynn crushes on a boy in the Swiss Alps, Lori and Leni become her crush coaches to help her talk to him.

When the Louds' bus gets a flat tire, they're invited to stay the night in a spooky couple's mysterious castle. During a tour of the Parthenon, Lincoln puts on a soldier's helmet which sends him back to Ancient Greece.