Into the Blue 2: The Reef - 2009

If they are hired to recoup the lost treasure of Columbus, married scuba divers Sebastian (Chris Carmack) and Dani (Laura Vandervoort) think they have hit the jack pot. However, because they get closer to the fortune, the couple begins to guess their companies have their particular schedule. Hitting upon the real plan, the 2 come which they may be expendable and there is far more than prosperity in stake.