An aging Pat Garrett is hired as a lawman on behalf of a group of wealthy New Mexico cattle barons--his sole purpose being to bring down his old friend Billy the Kid.
In a California memorabilia shop in 2010, collector Randy Guijarro bought a tintype that looked to be a familiar figure, Billy the Kid - playing croquet with his gang known as The Regulators. As the gravity of the discovery began to set in, Guijarro initiated a chain of events that would lead him on a painstaking journey to verify the photograph's authenticity.
Bill and Ted are high school buddies starting a band. They are also about to fail their history class—which means Ted would be sent to military school—but receive help from Rufus, a traveller from a future where their band is the foundation for a perfect society. With the use of Rufus' time machine, Bill and Ted travel to various points in history, returning with important figures to help them complete their final history presentation.