Jump Rangers - The Undersaur Alliance (Mission 1)

Jump Rangers is about little kid space commandoes fighting for humanitys survival against an empire of giant alien dinosaurs - as well as giant alien robots, and all the other giant threats that wait for us among the stars. When "The Saurian Horde" invaded Earth, our world has no interstellar travel of our own. The only way humanity could survive was by colonizing their vast and cavernous motherships, colonizing the worlds where they land, and spreading out amongst the stars like an infestation ...