Lila, a famous retired singer, loses her memory after suffering an accident, just as she planned her return to the stage.

Germán, an honest family man, sees how his whole world wobbles the night when, driving home, accidentally runs over two teenage girls. From that moment, Germán will have to do everything in his power to prevent his life from being destroyed forever.

Everyone knows what to do if one morning the sky would be absolutely full of UFOs: run as fast as you can. However, what would happen if the invasion started while you are in the flat of the girl of your dreams, the one you have just met?

A soldier from the 15th century, a university student from the 19th century and a nurse from the present join the secret ‘Department of Time’, a secret department within the Spanish government with the ability to travel through time. Their mission is prevent changes in history.