Abducted to War

He woke up twenty hours ago, but he's still groggy from some weird drug-induced slumber. Surprisingly, he's also no longer on Earth. The three moons sort of gave that away. Since he was a world-renowned survivalist and mountain hiker on his home planet, he doesn't panic right away. First, he needs to figure out how to stay alive in a place that looks like Arizona.The man roams in search of food. He sleeps only to find footprints nearby as if someone stood there all night, watching him. It soon becomes apparent this man was brought here for a reason. He has been abducted, not for some clandestine scientific experiment, but for his unique talents that will help him thrive.He is the only being in the galaxy that can save his planet. He won't use his strength alone, but also his mind and spirit and the assistance of some strange new friends. This survivalist will command an army into battle against a horde of evil aliens. No other can bring about the survival of mankind. This isn't some nature trip; it's the intergalactic battle to end all others.