National Geographic - Save The Titanic with Bob Ballard

The discovery of the Titanic in 1985 solved one of the great mysteries of the 20th century.

But now 100 years after the ship tragically sank, the black market in Titanic artefacts is a growing threat and one man is determined to stop it.

Since co-discovering the resting place of the Titanic in 1985, Dr. Bob Ballard has watched as numerous visits - scientific, tourist, and salvage - appear to be 'loving her to death.'

As part of his mission to protect the wreck, Ballard enlists the descendants of the Guarantee Group - an elite few chosen from the Titanic's Belfast builders to sail on her maiden voyage.

In this moving documentary, with the help of these relatives, Ballard hopes to return Titanic to its rightful place as a watery grave for her 1,500 victims.