A mere 6.8 earthquake on the island of Hawaii unleashes a 20-foot tsunami that wreaks major damage throughout the Hawaiian Islands. Can a biology professor and a personal trainer find the cause? They are both former Navy Seals and the answer lies 6000 feet under the sea along an ever-widening crevasse. With razor sharp wit and the military skills of their Navy Seal training, Chuck Palmer and Dr. Scott Richardson make a discovery no one could have fathomed: another tsunami 100 times bigger is about to crush the Pacific Rim.