A deadly meteor storm has been labeled a one-time celestial occurrence, but astrophysicist Steve Thomas believes something worse is yet to come. After discovering his asteroid tracking satellite is secretly being used for military surveillance, Steve leaks the truth to the press, and it costs him his reputation, his job, and his friends. With the backlash of being a whistle-blower, the pressure threatens to tear his family apart, just when Steve discovers a threat to the entire planet: a giant dark asteroid invisible to current detection systems will soon strike the Earth. Barred from using his own satellite to prove the asteroid's existence, Steve is forced to work in the shadows in a desperate attempt to save humanity.

Ace is just like any other new kid at school, until his grandfather from Transylvania dies at age 96 and sends him his dog Fang. Ace soon discovers that Fang is a vampire dog - and he speaks English! Mad scientist Dr. Warhol and her bumbling assistant Frank try to capture Fang and steal his DNA in hopes of developing the latest anti-aging technology, but lucky for Ace the vampire dog manages to stay one step ahead of his pursuers. Along the way an enduring friendship forms when Ace and Fang discover that together they are unstoppable.