Four young divers stumble upon a legendary shipwreck that has lain undiscovered for hundreds of years and is rumoured to contain millions in gold and treasure. But nothing comes without a price and when they unearth a more sinister find on the ocean floor nearby it threatens to sink their dreams. The friends decide to make a pact to keep the two discoveries secret so no one else can lay claim to their amazing find. With so much at stake, their friendships and loyalties are tested to the limit. And once the word is out, they soon turn from hunters to hunted!