The 'A Man Has Fallen Into the River in Lego City' meme originates from a 2009 commercial for Lego City's emergency services line. The dramatic narration, characterized by the explosive 'HEY!' catchphrase, became a viral sensation in early 2020 as a versatile copypasta and video remix template. It typically follows a rigid, high-energy structure: a disaster strikes, the narrator shouts for attention, a rescue vehicle is built, and the victim is saved. Users leverage this template to create absurdist humor, crossover parodies, or to mock overly dramatic commercial tropes. Its longevity stems from the nostalgic pull of early 2010s advertising combined with the frantic, chaotic rhythm of the original script.