Yogi and the Invasion of the Space Bears (1988) on Netflix

Plot summary

Campers in Jellystone Park keep losing picnic baskets to Yogi Bear, and Ranger Smith has had enough. He declares Y. B. Day and arranges to send Yogi to Siberia, so Yogi and Boo-Boo go into hiding. Two aliens, Zor 1 and Zor 2, seize them and carry them to Planet Daxson, where their superior, DAX Nova, orders copies of both bears made and sent to take over Jellystone Park. At the park, Smith and Ranger Roubideux hunt for the absent pair and meet Cindy Bear, who is angry and refuses to answer questions. She tells them she fears for Yogi and Boo-Boo, but Smith, suspecting she may be covering for them, reports no trace of either. The real Yogi and Boo-Boo are far from home, looking for a way back.