Against the wishes of both the Army and 21st Century Security, Akagi and the rest of PR Division decide to help those hurt in the Heterodyne attack by flying them to a hospital.
With rumors flying around about a new division being created to take charge of Dai-Guard, the team decides to demonstrate that they are the best people for the job.
News of the rebuilding of the old park sparks Ibuki's old memories of playing there with her father. Is this just a long flashback, or will her recollections come in handy in the battle against the latest Heterodyne?
Things get boring for the team when they are forced to go on standby for a week after a mushroom-shaped Heterodyne with regenerating abilities appears.
With Shirota's help, the army has built Kokubogar- a brand new giant robot that they hope will replace Dai-Guard and end the days of civilians saving the world.
With Kokubogar needing serious repairs, Shirota resumes his previous assignment as Dai-Guard's tactical advisor... although not everyone is happy to see him after his earlier betrayal.