An eclectic group of American tourists embarks on a whirlwind 18-day guided tour across Europe, each seeking different experiences. The tour guide, a charming yet jaded Englishman, shepherds the diverse group as they traverse through multiple countries, making brief stops at iconic landmarks. Among the tourists is a quirky, middle-aged woman searching for romance, a young couple on their honeymoon, and a quiet man looking to revisit his wartime past. Tensions and hilarity develop as cultural misunderstandings and the rapid pace of travel challenge the group's expectations.

Amid the comedic chaos, the tour guide finds himself drawn to one particular tourist, a spirited and independent woman who initially appears more interested in escaping her life back home than in sightseeing. As their paths intertwine through picturesque locales and bustling cities, they discover unexpected connections and personal revelations. The journey evolves into not only an exploration of famous European sites but also an introspective voyage for each character, questioning their desires, relationships, and what they seek in life. The tour's relentless schedule forces them to confront and often humorously adapt to each other’s quirks as they careen from one destination to the next.