Hal and John leave OA and come to earth. Guy Garnder Appears in an episode or two, switching places with them from eath to OA. During their time on earth, Hal and John uncover the secret plan by the guardians first attempt of a peacekeeping force using the Manhunters. But it didn't originally work out, because the Manhunters have infiltraded some of earth and have started cults around them. They are doing this to infiltrate and liberate earth. Hal and John fight against them and eventually win. The season won't have a lot of action, it will be more of them investigating the guardian's plan. They team up with some people throughout the season. However, it turns out the Manhunters were actually trying to help earth from a dominant threat that is on its way called "The Centre". Hal and John find this out at the end of the season.
