Mr. Wilson and Dennis' father plan a secret early-morning fishing trip without Dennis, but he suspects something is afoot due to various clues they leave. Their sleep the night before is disrupted by Dennis' restless curiosity.
| Name | Type | Role | |
|---|---|---|---|
| William Cowley | Writer | ||
| Peggy Chantler | Writer | ||
| Ron Howard | Guest Star | ||
| Gil Smith | Guest Star | ||
| William D. Russell | Director |