Before leaving their planet, the Robinsons meet a boy alien called J-5. They take him with them to return him to his home planet. They meet a strange ship, which turns out to be an earth ""lighthouse"" for lost ships. Thinking this ship will help them with extra fuel and star charts they celebrate, however when J-5 learns that they don't have enough fuel to take him home, he angrily sets about to destroy them all with a creation of his imagination. J-5 begins a new life at the lighthouse, and the Robinson's leave in the knowledge he will be looked after by the kindly, old lighthousekeeper.
| Title | The Haunted Lighthouse |
|---|---|
| Genres | Sci-Fi & Fantasy Comedy |
| Release Date | 1967-10-18 |
| Episode Runtime | 01 Hours 00 Minutes |
| Season Number | 3 |
| Episode Number | 7 |
| Production Companies | Irwin Allen Productions, 20th Century Fox Television |
