 Doug and Tony arrive in a strange facility packed with scientific gear at least three hundred years beyond what they know. They quickly learn they re aboard an alien ship journeying to a primitive planet, where the aliens plan to harvest all the protein, leaving behind a dead world. That primitive planet, visible through the viewer, is Earth in 1885! Doug and Tony must find a way to thwart the aliens  plans, for Earthlings of that time stand no chance.