When Gumdrop and Vroomer, the latest members of the Plane Scout crew, are sent on a mission by commander Gumdrop, they take off on the greatest advent

位於莫爾圖尼亞星的獅子王國陷入了空前的危機！萬獅之王阿法沙決定派遣獨生子沙瑪爾和他的兒時玩伴兼跟班大象塔沙，一同踏上一場拯救獅子王國的宇宙冒險之旅。