When the Titan sub imploded on a dive to the Titanic, the world watched in shock. A major investigation was launched. With unprecedented access to investigators and exclusive new evidence, this documentary explores whether this was more than a tragic accident. Why did it happen? Could it have been prevented?
Watch on Tuesday 27th May at 9pm on BBC Two or catch up on BBC iPlayer!
Watch on Tuesday 27th May at 9pm on BBC Two or catch up on BBC iPlayer!