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.
J. is depressed. E. lives peacefully. S. tries to get back with his wife. G. resorts to anxiolytics. P. plays seduction games. María and Sara exchange their husbands. L. calls his lover in a peculiar way.
After the murder of Leo's wife a single idea circles endlessly within his head: revenge.
