In this episode, the aliens and Orb examine volcanoes.
After crashing down the side of a pyramid in Egypt, Orb tells the aliens about mummies. When Rip decides to bring some treasure aboard the ship, a "curse" is placed upon the cabin. At the episode's end, the aliens beamed the treasure back to its rightful owner. Then they present to Admiral Lump their report about mummies. Then Kidogo reports something strangely familiar. Rip tells Kidogo to beam it up but the object turns out to be the mummy seen earlier in the episode frightening all three aliens.
In this episode, the aliens and Orb take a look at the mysteries of Earth, including the sudden disappearance of the Mayan civilization. The aliens think that the mysteries were caused by their arch rivals the Argoonians but the mysteries weren't caused by the Argoonians.