When Barcelona is featured in TV series or films, its most touristy and stereotypical image is often projected. But the Catalan capital is not just a holiday destination; it's also a technological hub, and this is the side it aims to showcase. Day One, he thriller which arrives on Friday on Prime Video and can also be seen on 3Cat this March (when it is broadcast on Catalan public television it will be titled Day orThe six-episode series centers on a computer prodigy, played by Álex González, who returns to Barcelona after being alerted that a major technological innovation could endanger humanity. The series features the participation of the Mobile World Congress, which contributed to its production.