The Mogadorians are an evil alien species. Led by their merciless ruler, Setrákus Ra, they attacked the planet Lorien when it was at its most vulnerable. The planet’s Elders were gone, and the attack came out of nowhere. The Lorien were unprepared and hardly stood a chance. It was during the attack that the nine alien teens escaped, along with their Cêpans. But the Mogadorians won’t be satisfied until every last Lorien is killed, and they are now on Earth hunting them down one by one.