October 1983. Basque refugees Joxean Lasa and Joxi Zabala go missing in Bayonne. Twelve years later, a police officer from Alicante, reopens the case of two unidentified bodies, murdered and buried in quicklime. The inquiry begins and Iñigo, with his young assistant, Fede, investigate the case. However, on the long and laborious path to prove their allegations, they will have to confront the dirty tricks of a group that clings to power at any cost, overcome their own disputes and even put their own lives at risk.