In November 1985, a couple arrives at Colombia's Palace of Justice for a date. As tensions mount between the government and the M-19, a plan is formed.

Within the palace, rebels hold hostages at gunpoint. Outside it, the military counterattack as countless families desperately await news.

The guerrilla group's radio fail as their ceasefire demands fall on deaf ears. A week after the siege, journalist Olga Behar meets a surviving guerrilla fighter.

Three months after the siege, Pilar and Umaña work together to interrogate the military. Olga's investigation puts her at the center of a darker story.

As the military battles the M-19, hostages face more uncertainty. Twelve years later, a gruesome discovery sparks more questions than answers.

Twenty years after the siege, a new prosecutor reopens the case. Olga's video evidence is takes, and the military's tactics take a drastic turn.

Ángela interrogates military members. As the crisis within the palace deepens, M-19 and the hostages realise it is too late to surrender.

Videos and radio messages become the cornerstone of a trial families have waited years for, as justice is finally set in motion.