A nine-year-old amateur inventor, Francophile, and pacifist searches New York City for the lock that matches a mysterious key left behind by his father, who died in the World Trade Center on September 11, 2001.
A young and parentless girl adopts a 'dog' from the local pound, completely unaware that it's supposedly a dangerous scientific experiment that's taken refuge on Earth and is now hiding from its creator and those who see it as a menace.