A week has passed since the Swarm Crisis. After reuniting with Oscar; JD, Del, Kait, and Marcus set out to escape the COG.

Marcus has trust issues with Kait now though, after learning that she was the grand daugther of Queen Myrrah (at the end of GOW4).

Now however the droid army has arrived on Sera. The COG's DeeBee army has pushed the Sepratits back. They had to fight two enemies the battle droids and the Swarm. After learning of the Swarms origins, First Minister Jinn ordered multiple worldwide air strikes on the Locust burial sights. The DeeBees were sent in to "clean up the mess".

The Gears couldn't stay with Baird, Cole, or Sam because that would put them in danger. So now their running from everyone.