The Space Family Robinson go through a food crisis when their plant purifier breaks down. Will and Dr Smith discover a travelling show of circus people, and Will is later tricked in to agreeing to join. It's a race against time for the Robinsons to save will, and keep themselves alive.
| Creator | Irwin Allen |
|---|---|
| Actor | Guy Williams, June Lockhart, Mark Goddard |
| Country | United States of America |
| Production | Irwin Allen Productions |