Hotly pursued by their grandparents, Grandfather Smed and Grandmother Smoo, the two young aliens lead their families on a chase...
Hotly pursued by their grandparents, Grandfather Smed and Grandmother Smoo, the two young aliens lead their families on a chase across space, giving them the opportunity to find out they have more in common than they think, in this family stop-motion animated adaptation of the popular kids book.
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