In 2020, after the colonization of the moon, the spaceships Vega, Sirius and Capella are launched from Lunar Station 7. They are to explore Venus under the command of Professor Hartman, but an asteroid collides and explodes Capella. The leader ship Vega stays orbiting and sends the astronauts Kern and Sherman with the robot John to the surface of Venus, but they have problems with communication with Dr. Marsha Evans in Vega.

When Lucy discovers that Ethel Merman and Mr. Mooney made up a story to hid the singer's real identity, she can't help but come up with the nerve to as Ethel to perform at her son's boy scout pageant. Ethel accepts and she does the show, along with Lucy and Mr. Mooney.

Snagglepuss glows with noble sentiments after reading the fairy tale of the mouse who saves the lion. So he is quick to free a mouse named Bigelow from a trap. Bigelow is officiously and overwhelmingly grateful.