Kyosuke manages to block the Special Unit and its sword from slicing the
Shirogane in half, but the Special Unit still manages to do some
damage. The regular ATX units don't seem to be able to do much about
this mysterious attacker, but when things look bad, Lt. Irm in the
Grungust appears, a unit that is more capable of handling this enemy.
More reinforcements are on the way as well, as Shirogane makes an
emergency water landing, as its engines have been badly damaged. Into
the fight comes the Hagane, to protect the Shirogane.
The Grungust takes on the "W15," the call sign for the Special Unit. But before the battle can advance too far, the person in control orders the W15 to withdraw. The DC forces, as their sub is safe for the moment, withdraw. It seems the DC has ordered Major evil jerk and his units to come to the Earth's Cradle, as Col. Van is now ready to make his move. Back on the sub, Seolla goes into mental breakdown mode over the apparent death of Arado, blaming Latooni for his demise. Latooni herself also thinks she is responsible for the death of Arado.
Confusion the uninitiated, such as myself, further, we then move to the Tesla Institute, where we see pilots engaged in simulator training, as they are preparing to use the Calion as a fighting machine, not an interstellar transport. The research and training is being financed by Isurugi Heavy Industries, and it's not clear at all who they are doing this for...other than themselves. The pilots, however, are all former DC. There seem to be quite a few things going on in the research institute, and we even learn that there are four chokijin (we've only seen two so far). Of course, the appearance of the chokijin at all is a very bad omen.
Meanwhile, the Shirogane has been ordered to return to Langley for repairs, so now the Hagane will take on board the ATX Team and the Special Tactical unit and continue the pursuit of the DC remnants. They're not the only ones taken on board, as they have a guest as well that they are bringing along for the ride.
Source Here: http://www.mania.com/super-robot-wars-og-inspector-episode-05_article_126148.html