Three friends decide to go to Australia to record the sharks, a dangerous recording since it implies having to dive with them. They will put in security measures, like a cage, but it is still a very risky activity.
In fact that is what they are looking for, because they want to present the recording to a contest of extreme activities, a contest that they hope to win or at least be in a good position in it to make themselves known.
The recording begins and his plan does not take long to go to the bottom, because in the middle of nature and in a medium as adverse to humans as the ocean, things can be twisted right away.
The film will be saved and it will remain as a testimony of the survival of the human being at the same time that it will be a testimony of death, because few survive the attack of sharks in the open sea. Will any of the friends survive?