Into the Blue (2005)

Divers Sam and Jared love life in the Bahamas. But when friends Bryce and Amanda visit, the couple take them on a treasure-hunting trip, where they discover more than they bargained for, a downed airplane full of cocaine alongside a famous shipwreck. Unknown to Sam and Jared, Bryce makes a fatal mistake and decides to sell the cocaine, which angers a group of drug dealers, who are in hot pursuit of the divers.