Dennis meets Mr. Wilson's sister, Helen who reads the book Treasure Island to Dennis and his friends, and they become fascinated with buried treasure. Mr. Wilson draws a treasure map to trick the boys into tilling his garden plot.
| Name | Type | Role | |
|---|---|---|---|
| Peggy Chantler | Writer | ||
| William Cowley | Writer | ||
| Mary Adams | Guest Star | ||
| Charles T. Barton | Director |