Mike and Jake go head-to-head when both campaign for the Mayorship of Colorado Springs. At issue: whether drinking and prostitution should be outlawed. Myra finally breaks loose from Hank.

Mike tangles with the usually benevolent Reverend when she donates books to the town and he tries to ban them, ultimately burning some of them until Mike brings him to his senses. Also, Brian, influenced by Twain's ""The Celebrated Jumping Frog of Calveras County,"" stages a frog-jumping contest with disappointing results.

Mike remains the sole voice of reason when townsfolk read a newspaper article predicting that a comet will end the world. Also, Mike addresses the Cooper kids' fears about ""the end."" Hank and Loren cash in on hysteria.

A paleontologist arrives in town, igniting ""bone fever"" among the townsfolk when he announces that dinosaur bones are worth money. Meanwhile, Matthew and Colleen try to prevent Brian from discovering that the ""dinosaur"" bone given him by his pa is fake.