They're actually trying to use the Kandarian summoning stone to Take Over the World.
Eldridge pretends to be an Absent-Minded Professor who's way out of his depth in studying the Necronomicon, while Trisha pretends to be a flirty, air-headed TV presenter.
Bus Crash: The intro movie establishes that Jenny from Evil Dead: Hail to the King died at some point in the 10 years between Hail to the King and Fistful of Boomstick, though dialogue suggests it happened fairly recently.Small hints throughout the game seem to suggest that she was possessed by evil the whole time, or at least for most of the game, rather than just at the end. Bitch in Sheep's Clothing: It turns out Trisha is the Deadite Queen, and the final boss.During the Civil War era, Ash also gets a Gatling gun to strap to his stump. Arm Cannon: In the museum, Ash finds a fluid cannon for his stump that coats enemies in gasoline, allowing them to be set on fire with one shot it gets upgraded into a flamethrower during the colonial era.