The story is focused on the real-life survival of the Uruguayan rugby team after their plane crash in the Andes. The true antagonist is the harsh and unforgiving environment of the mountains:
* The Andes: The unforgiving landscape, frigid temperatures, lack of food and resources, and constant threat of avalanches pose the most significant challenge to the survivors.
* Nature's Elements: The survivors struggle against the unforgiving cold, the lack of oxygen at high altitudes, and the unpredictable weather.
However, there are also aspects of human nature that act as antagonists:
* Internal Conflict: The survivors face internal conflicts with fear, despair, guilt, and their own survival instincts.
* Ethical Dilemmas: The need to survive forces the group to make difficult ethical choices, such as resorting to cannibalism.
Therefore, it is more accurate to say that "Alive" explores the struggle against the elements and the internal conflicts of human survival, rather than featuring a single, traditional antagonist.