Penny and Judy stumble upon a mirror. They discover someone is on the otherside. Before they know it they are transported to the mirror universe which is occupied by only one person, a boy who is lonesome for companionship.
| Creator | Irwin Allen |
|---|---|
| Actor | Guy Williams, June Lockhart, Mark Goddard |
| Country | United States of America |
| Production | Irwin Allen Productions |
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