Audiences may have first learned about Graboids in Tremors, but The Legend Begins 100 years prior in a prequel where Burt Gummer's great grandfather (also Michael Gross) finds his Nevada silver mine overrun with "dirt dragons". Can a Mexican prospector, badass gunslinger, and community of rejected immigrants find the firepower to defeat these mythical snakes before their American Dream is swallowed whole? And do Arnie, Jakob, and Stuart cotton to this fourth film in the franchise devolving into a Western? Saddle up and find out now!