When there is money, there are people trying to keep it all to themselves. Can a person survive not only the ZOO, but people hoping they will die?

​Dr. Christopher Lin has to go into the ZOO a third time, but will it be the last?

He has been played by the one person he was hoping to save.

Sometimes, the ZOO is too much for one man to handle. Even with a team, it is highly questionable if the unsaved care to be enlightened.

By the time Chris figures out the true danger, he has to make a decision that will change his future.

In the end, will Chris choose to save his friend? Will the potential sacrifice be worth it?