The series tells the story of a mysterious man, who goes by the name of El Profesor ("The Professor"), is planning the biggest heist ever to occur. In order to carry out the ambitious plan, he recruits a gang of eight people with certain abilities who have nothing to lose. The goal is to enter the Royal Mint of Spain and print 2.4 billion euros. In order to do this, they need eleven days of seclusion, during which they will have to deal with sixty-seven hostages and the elite forces of the police.