在这部吸血狗家庭片中,ACE是一个普通学校的新生，就像任何其他的新同学一样。直到他96岁的祖父去世，留给ACE一只狗让他照顾。ACE很快发现，这是一只会同他说英文的吸血鬼狗狗。疯狂的科学家沃霍尔博士和她装模作样的助手弗兰克。尝试捕捉吸血鬼狗狗，窃取他的DNA，开发最新的抗衰老技术。
ACE必须保护爷爷留下的狗狗，并和它成为了最好的朋友。
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.
