'The Walking Dead' spinoff may finally tell us how the zombie apocalypse began.

Coming off the shocking season finale of "The Walking Dead," AMC released the first trailer for the new spinoff, "Fear the Walking Dead." From the video, it seems like there's a strange virus going around. Hmm ... wonder what that could be?

The new show is set to be a prequel to "Walking Dead." It will reportedly take place on the West Coast in the early stages of the zombie outbreak. The new cast includes Cliff Curtis (“Missing"), Kim Dickens ("Gone Girl," "House of Cards"), Frank Dillane ("Harry Potter and the Half-Blood Prince") and Alycia Debnam Carey ("Into the Storm").

The spinoff has received some grief online for its somewhat unoriginal title, but if it's going to be as intense as the trailer looks, who really cares what it's called.

"Fear the Walking Dead" premieres Summer 2015 on AMC.