A biochemist is captured in the jungle by a Colombian paramilitary group to manufacture drugs. There, he creates a synthetic drug that allows him to kill his captors using excessive violence. Transformed into a junkie, named Disposable, he lives on the streets with his dog, his only companion. When the dog dies in an arson attack, the pain and his desire for revenge turn him into El Colibrí, an assassin who fights against corruption and social repression.