A long time ago in a distant fairy tale countryside, a young girl leads her little brother into a dark wood in desperate search of food and work, only to stumble upon a nexus of terrifying evil.

Iowa farmer Ray Kinsella hears a voice in his corn field tell him, "If you build it, he will come." He interprets this message as an instruction to build a baseball field on his farm, upon which appear the ghosts of Shoeless Joe Jackson and the other seven Chicago White Sox players banned from the game for throwing the 1919 World Series. When the voices continue, Ray seeks out a reclusive author to help him understand the meaning of the messages and the purpose for his field.

Ashley Williams travels to a secluded cabin in the woods with his girlfriend Linda where they find a tape recording of a professor and a book of evil. This unleashes a bunch of evil spirits that constantly terrorize Ash. Meanwhile a journalist comes to the area to study the book of evil. Ash and her end up having to survive this swarm of evil until morning comes.

Ray Garrison, a slain soldier, is re-animated with superpowers.

Ray Garrison, a slain soldier, is re-animated with superpowers.

In the small town of San Dimas, a few miles away from Los Angeles, there are two nearly brain dead teenage boys going by the names of Bill S, Preston ESQ. and Ted Theodore Logan, they have a dream together of starting their own rock and roll band called the "Wyld Stallyns". Unfortunately, they are still in high school and on the verge of failing out of their school as well, and if they do not pass their upcoming history report, they will be separated as a result of Ted's father sending him to military school. But, what Bill and Ted do not know is that they must stay together to save the future. So, a man from the future named Rufus came to help them pass their report. So, both Bill and Ted decided to gather up historical figures which they need for their report. They are hoping that this will help them pass their report so they can stay together.