In October 1983, members of ETA Lasa and Zabala disappear in Bayonne. Twelve years later, their bodies, tortured and buried in quicklime by the GAL (Anti-Terrorist Liberation Groups) are identified. Then begins a process in which the lawyer for the two families (Unax Ugalde) and his assistant try to justice and that the murderers sit on the dock.

"The Case Lasa and Zabala was the first terrorist act carried out by the Anti-Terrorist Liberation Groups (GAL)."