A red and white metro train pulls into an underground station. The train has "Cent anys de Metro" (One hundred years of Metro) written on its side, along with a stylized arrow logo. Inside the train, passengers are visible through the windows. The station features a distinct purple ceiling with geometric light fixtures. The platform has white tiles with tactile paving indicators. In the background, a station sign reads "Sant Martí," indicating the location is the Sant Martí metro station in Barcelona, Spain. Two men are seen walking on the platform as the train arrives. The overall scene depicts a typical metro operation.