You play as Leonardo, a professional salvager and diver, who finds himself stranded on a Caribbean island after a storm. With his partner Zucco, they must repair their boat to escape the island, but they soon discover that unscrupulous people are involved in the business, including a large corporation trying to buy out the island for its own gain.
As Leo, you explore the ocean using radar, which beeps faster and faster until it locks onto your target. You can find valuables like old dog tags and broken CDs, or take on jobs from the shore. By collecting these items, you can upgrade your gear and improve your ocean exploration skills.
However, you must also manage your health and air supply while underwater. If your air runs out, your health will decrease, and the end will follow.
The game's storyline takes place on land in a first-person point-and-click environment, allowing you to interact with characters and progress through the story.