Simon is a modern day warlock. Though he lives in a storm drain and sometimes talks to trees, he's deadly serious about his witchcraft. After being picked up for vagrancy, Simon spends a night in jail with Turk, a young hustler with connections to powerful people such as Hercules, an aging hipster who hires Simon to work one of his groovy parties. There he meets Linda, the DA's pill-popping daughter. In between romanic dalliances and colorful sex magic ceremonies, Simon must contend with those who dare to challenge his magical prowess causing him to summon the dark world for his revenge.

Dr. John Beck, recently married, decides to take his wife, Cathy, spelunking in Carlsbad Cavern. While there, Dr. Beck, who specializes in bats, is bitten by a fruit bat. He is then, inexplicably, transformed into a vampire bat. While he escapes and seeks help from another doctor, it is clear the treatments are not working. In fact, they are aggravating his condition. Dr. Beck unwittingly goes on a killing spree, catching the attention of Sergeant Ward.

Ned Rivers loses his ranch to the railroad and returns to prospecting. In the wild he meets and befriends Jessie who has been wandering in the mountains since her father died. They take care of an orphaned grizzly cub, Goldy, a "Golden Bear," whose mother has been killed by a circus owner looking for a new circus attraction. When the circus owner, Boss Cooperman, arrives Ned and Jessie try to save her with the help of new friends.