Ekko, a tech loving youth from Zaun, is a leader of a liberation movement in a dystopian world. Here, people live in twin cities of progress and exploitation, Piltover and Zaun. People of Piltover are privileged, holds administrative and governance power, while the people of Zaun are exploited and deprived of their human dignity. In this fight, Ekko has incurred many personal losses - like the death of loved ones who sacrificed their lives for the movement to succeed.
Owing to a turn of events, Ekko finds himself in an alternate timeline where there is no class based distinction, people of Zaun and Piltover are equal, and he is a progressing scientist living happily with his friends and love interest. But soon, Ekko realises that his original timeline still exists, and he is missing from their ongoing movement.