On the night of September 28th 1994, the ferry M/S Estonia sinks in the middle of the Baltic Sea. The ship has reached the seabed less than an hour after the first warning signs. The survivors tell about their battle for survival. Their stories turn out to be valuable for the investigation.

The unspeakable disaster shocks the countries surrounding the Baltic Sea. Over 700 of the deceased are left inside the wreckage and heads of state promise that the bodies of the families loved ones will be returned to them. But relatives soon become worried, when the government seems unwilling to fulfil their promise.

Estonia sank in less than an hour. A boat of its size has never sunken so quickly before without being sabotaged. The official investigative report tells a different story from how the survivors remember the events of the night.

After the Cold War, Estonia is opened to the world. W3estern secret services begin their hunt for military secrets in the east and the Estonia line becomes a part of the game. What was tucked away among the cargo within Estonia the night it sank?

26 years later, relatives and survivors are still fighting for answers. A German ship joins the documentary team at the wreckage and performs the first divings there since 2001. Will they find the answer to the mystery of the M/S Estonia?