Complex sentence: In Carson City, Hiram hears a telegram revealing that the Graboids have made it through the pass and are headed for the town and changes his mind, buys a bunch of weapons, and heads back to town to lead a last stand against the creatures.
Split into simpler sentences: In Carson City, Hiram hears a telegram revealing that the Graboids have made it through the pass and are headed for the town. He changes his mind, buys a bunch of weapons, and heads back to town to lead a last stand against the creatures.