How does a psychologist handle three phobia sufferers on a cruise ship in the Gulf of Mexico? Doctor Nicholas Brandon of Houston thought it’d be a good graduation of sorts for advanced patients in his therapy group to take that final step out of self-imposed prisons. Wisdom of that decision comes into question. Ruthless rogue Lebanese terrorists seeking to make their mark on the world and then profit by it commandeer the vessel. Survival of three phobia sufferers is in Nick’s hands and it’s not looking good for him either.