A Very Strange Trip
A man is charged with a crime and instead of going to jail he joins the army and becomes a transporter. He unknowingly transports a time machine, but it starts shooting him forward and backwards in time.... Battlefield Earth
Humans (led by one man) struggle to take back the Earth. Jonny starts as a slave for the Psyclos, learns their secrets and uses them to overcome his captors. After regaining control, humans discover they have defeated the most powerful aliens and now must protect themselves from other races. ... Final Blackout
This was one of Hubbard's earlier works, published in 1940 near the outbreak of the Second World War. It is set in a Europe devastated by thirty years of incessant warfare. Governments all over the Continent have been topped time and again by revolution, and sheer exhaustion has brought the great industrial machines of civilization to a grinding halt. Europe is a veritable graveyard, ruled by scattered peasants and roving bands. A small band of "unki... The Invaders Plan
There are ten total volumes in this book, and yes you actually have to read all of them to fully appreciate the scope of the book. The basic plot is that an anlien culture, planning to invade Earth, eventually reconsiders, due to the less desireable aspects of our society....