A large crowd of people are seen marching on a city street, likely during a protest or demonstration in Barcelona, Spain. Many participants are wearing yellow t-shirts, suggesting a unified group. Several flags are being carried, including two prominent green flags with the white text "USTA", a red flag with white text "INTERSINDICAL", and other flags in red and purple. The group is moving forward on a paved street lined with trees. In the background, buildings and a construction crane are visible under an overcast sky. The audio features a person speaking in Catalan, seemingly addressing the crowd, mentioning "un dia pel matí" and "pel dia d'avui," which translates to "one day in the morning" and "for today." The speaker also says "tothom atent" ("everyone pay attention").