A Mars probe mistakenly comes down on the island and when the professor repairs the camera, scientists believe they are getting images of Mars Meanwhile Mr. Howell has put Gilligan to work on a secret project for his anniversary.

Gilligan is trying to catch some nice lobsters in the lagoon so everyone can have a great dinner. Meanwhile, the professor notices that the water is getting higher on the measuring stick out in the lagoon that he is using to figure out if the island is sinking or not. While all this is occurring the women decide that the island needs to be landscaped around the huts.