The ARA San Juan leaves Argentina's shores on a critical expedition. When contact with the craft is lost, the location of 44 people becomes a mystery.

The search for ARA San Juan becomes an international operation. Argentina's government faces criticism from victims' families as secrets come to light.

The cause of the ARA San Juan's implosion divides the government and the investigators. Rumors of the submarine being attacked before its demise spread.

Theories circulate over the cause of the submarine's implosion. Confidential documents spark the possibility of an external attack by an old enemy.

Tensions between the families of the missing crew and the Argentine government rise after accusations of illegal spying.

A year after the submarine's disappearance, remnants of the craft are found in the Atlantic. But suspicions swirl about the timing of its discovery.

Discovery of the submarine's wreckage brings relief to grieving families — and distrust in the Argentine government over the timing of its detection.