Original: Plot In 1996 , treasure hunter Brock Lovett ( Bill Paxton ) and his team explore the wreck of the RMS Titanic , searching for a necklace set with a valuable blue diamond called the Heart of the Ocean .
Simplified: Plot summary In 1996 , treasure hunter Brock Lovett and his team has reached the most famous shipwreck of all - the RMS Titanic .