The town of Shadowhawk is overrun with the undead when it gets caught in the war between two brothers, each leading their own army of the undead. One of the brothers has sold the townsfolk his “magical elixir” promising them immortality. What he doesn’t tell them is that he’s recruiting them for his zombie army, and they will develop an unquenchable hunger for human flesh!
Dave and Phillip Hull, twins, are totally different in character. Dave is steady, slow to hate and true in love. Phillip, the gay and popular gambler, is perhaps more lovable on the surface, but shifty and flare-tempered underneath. Dave loves little Meg, daughter of Hardy, a cattle rustler. Dave does not know that the father is a cattle rustler, however.
Irene Norris returns to the ranch from boarding school. She sees Dick Taylor, ranch foreman, win over Poncho, and half-breed, in a bucking bronco contest. She admires Dick's ability as a rider, and a friendship springs up between them much to the rage of Poncho, who loves the girl.
The stooges are living with their mother who persuades them its time to leave home and seek their fortune. After a con man sells them a phony deed to a lost gold mine, the boys head west to find the treasure. After some mishaps with Curly's gold finding invention, they locate the mine and strike it rich. When two crooked miners try to take their gold they hole up in an abandoned hotel and, although they get bombarded by dynamite, triumph over the crooks.
Bob Tyler has rustler trouble while driving a herd of cattle to the new owner, but he refuses to turn the herd over to Frank Kellogg. He has a run-in with Jean Polk, discovers she is the owner of the cattle, and is fired. With his friend, Barney McCool , Bob snoops around and discovers that Kellogg is behind the rustling.
Reuben Ellis and his daughter, Belle, are in hard financial straits. Burdened with debts and pressed by persistent creditors, the old man finds but one way to meet his obligations, and that is mortgaging the ranch. Belle tries to console him, but agrees that they must borrow money. Ellis rides into town and applies to a money-lender for a sum sufficient to meet his debts. Walker, the loan agent, agrees to ride out to the ranch and look it over, but after he has viewed the ramshackle buildings and pitiful collection of household furniture he shakes his head and says the place is not worth a cent.
Cowboy Bill sells his prize dogs to pay Janet's way back to New York and, in love with the girl, follows her to Manhattan where he obtains a job as a construction worker.
Greek Conniston, after living a life of ease and comfort, is forced by his millionaire father to get a job and earn his own living. While traveling West with his friend Roger Hapgood, Greek meets Argyl Crawford and, entranced by the girl, takes a job on her father's ranch.
The Commandant is making life rough for the colonials in Spanish California. While trying to help, Zorro is charged with the murder of the new Governor, but in the end he triumphs over the evil Commandant.
Wildcatter Jeff Dawson does his best to bring in a gusher in Mexico despite continual bandit raids. He asks for help from his ex-employer Ward Conway, but Conway, now married to Dawson's ex-lover Marina refuses, fearing that his wife will want to renew her romance with the other man.
With the help of Red Barton (Wade Boteler), Phil (Jack Holt) makes a spectacular escape from jail. He obtains a parson's outfit from a pawnshop and shortly thereafter winds up in a barroom brawl. One of the other brawlers is Chuckwalla Bill (J.P. Lockney), the newly elected mayor of the town of Panamint.
Tom Cameron learns that his twin brother is with a group of German spies. They intend to thwart the government's efforts to round up horses for military service.
The successful operations of a lone bandit known as "The Night Hawk" terrorize a frontier town, and when a stranger arrives riding a fine horse, suspicions are aroused and he is mistaken for the criminal.