Grandpa Montague Jetson returns and falls in love with a young teenager named Nova Neutron, unknown to him that her boyfriend Tyco has mistaken him for Mr. Spacely and plans to rob him blind.
| Creator | Joseph Barbera |
|---|---|
| Actor | George O'Hanlon, Penny Singleton, Daws Butler |
| Country | United States of America |
| Production | Hanna-Barbera Productions |
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