The show's setting changed with the fourth season, when the men of Fort Baxter were reassigned to Camp Fremont in California. This mass transfer was explained in storyline as being orchestrated by Bilko, who had discovered a map showing a gold deposit near the abandoned army post. One reason for the change from Kansas was so that the series could more plausibly bring in guest stars from nearby Hollywood, such as Dean Martin, Mickey Rooney, Diana Dors and Lucille Ball.