Mr. Wilson thinks he has discovered a space satellite.

Mr. Wilson's garden originally consisted of Dahlia bulbs. When Dennis sees them, he thinks they are ""sweet potatoes"" and after his bedtime, he ""secretly exchanges"" what is in his garden with what is in Mr. Wilson's garden. Dennis eventually raises the Dahlia bulbs & wins a 1st prize medal. After the garden judges see Mr. Wilson's garden, he is also given a medal.

Dennis Haunts Mr. Wilson's house due to him and his friends starting a club house in Mr. Wilson's basement.

The Mitchell's are having a party and the guests are late, So Dennis tries to help people find the house by taking an open House for Free!

Henry tries to take Alice out on their Anniversary. Meanwhile Dennis tries to build a swing in his yard and ends up chasing a cat up a tree in the process.

Dennis puts a sign in Mr. Finch's store telling everybody not forget his mom's Birthday.

The Driscolls are new neighbors but the Driscoll's phone is on the same line as the mitchell's.

Dennis builds a bench for Mr. Dorfamn to sit on.