The attacks of November 13, 2015 deeply marked France, with 131 dead and thousands injured, at the Stade de France, the Parisian terraces and the Bataclan. For the first time, victims, families, police officers, prosecutors, judges and lawyers recount their quest for truth and justice, from the night of the attacks to the final preparations for the trial that opens on September 8, 2021. For almost six years, the justice system has been on the move to investigate, question suspects, follow up on leads from Paris to Raqqa, and organize the largest terrorism trial France has ever seen.