Beau Maverick crashes a party in Virginia City thrown by eccentric socialite Kiz Bouchet. Kiz has a penchant for smoking cigars, playing poker, and fighting fires. Recognizing Beau as a fellow free spirit, she hires him to protect her. She believes her life is in danger. Beau discovers that Kiz's cousin Melissa, along with family doctor Pittman and attorney Hanford, are plotting to have Kiz judged incompent so they can split her $2 million inheritance. Beau comes up with a scheme to turn the tables on Melissa.