On 23 March 2025 in Tel al-Sultan, Gaza, Israeli forces massacred fifteen Palestinian aid workers travelling in clearly marked humanitarian vehicles, later burying their bodies and vehicles in a shallow mass grave. Earshot and Forensic Architecture worked with the Palestine Red Crescent Society and survivors of the massacre to reconstruct the incident with unprecedented precision. The Last Responders is an investigative documentary about this massacre. Anchored in the situated testimonies of two survivors, the film draws on firsthand video and voice recordings captured during the night of the attack by the Palestine Red Crescent Society. Through these materials, the film probes acts of execution and concealment, while reconstructing a fuller account of what unfolded in Tel al-Sultan in the hours and days that followed.