Strange phenomena surface around the globe. The skies ignite. Terror races through the world's major cities. As these extraordinary events unfold, it becomes increasingly clear that a force of incredible magnitude has arrived. Its mission: total annihilation over the Fourth of July weekend. The last hope to stop the destruction is an unlikely group of people united by fate and unimaginable circumstances.

The Autobots continue to work for NEST, now no longer in secret. But after discovering a strange artifact during a mission in Chernobyl, it becomes apparent to Optimus Prime that the United States government has been less than forthright with them.

It has been ten years since The Battle of the Breach and the oceans are still, but restless. Vindicated by the victory at the Breach, the Jaeger program has evolved into the most powerful global defense force in human history. The PPDC now calls upon the best and brightest to rise up and become the next generation of heroes when the Kaiju threat returns.

101-year-old Rose DeWitt Bukater tells the story of her life aboard the Titanic, 84 years later. A young Rose boards the ship with her mother and fiancé. Meanwhile, Jack Dawson and Fabrizio De Rossi win third-class tickets aboard the ship. Rose tells the whole story from Titanic's departure through to its death—on its first and last voyage—on April 15, 1912.