When the universe's highest-flying dogs warp into outer space, Skyfetcher and Spaceslobber get a call from canine headquarters! It seems an unknown force is attacking unsuspecting planets, and it's up to them to root out the source of the trouble!

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。