Takuma is starting to grow jealous of Hideto's rapid progress in his Danguard Ace training. He's also feeling that his position as Danguard's chief pilot is being threatened. Captain Dan has taken a shine to Hideto's progress but realizes that he has no outer space combat experience and assigns Takuma to train him. They are sent to space station RX-2 (the RX-1 successor) with Bunta to begin Hideto's training. Unkown to them, RX-2 is infiltrated by two of Harken's men. They sabatoge the RX-2's engine room and set the station on a collision course with the Jasdam base! Will Takuma be able to make the right military decisions? He'd better hurry as Mecha-Satan "Daelos" is closing in!
