Wreck of the RMS Titanic research. The stern section, which had previously received relatively little attention from explorers, was specifically targeted for analysis. The microbial colonies aboard "Titanic" were also a key focus of investigation. The second expedition, from 27 May – 12 June 2004, saw the return of Robert Ballard to "Titanic" nearly 20 years after he discovered it. The expedition spent 11 days on the wreck, carrying out high-resolution mapping using video and stereoscopic still images. 2005 saw two expeditions to the "Titanic". James Cameron returned for the third and last time to film "Last Mysteries of the Titanic". Another expedition searched for
Raise the Titanic! sabotage the mission and steal the byzanium for themselves. Once the "Titanic" is secured for the trip to the United States, a massive hurricane strikes the salvage area, allowing the Soviets to covertly board the ship and take the crew hostage. Pitt, who was previously believed dead after being last seen on board a crashed helicopter, reemerges to expose the Soviet spies within the salvage crew. After the crew, with the help of Navy SEALs who boarded from a hidden U.S. Navy submarine, regain control of the "Titanic" the ship is eventually towed to New York Harbor and laid up