Carrying on his deceased father and brother's will Manabu Yuuki joins the Space Defense Force to protect the safety of the Galaxy Railways. Manabu faces many challenges as he rises from the ranks of the SDF dealing with accidents natural disasters rescue operations and space pirates along all lines of the railway.The fleet of the Galaxy Railways transports countless galactic citizens from one exotic planet to the next protected by the SDF the elite force protecting the Railways Fleet against terrorists meteor storms and malicious alien life.These are the stories of those that travel the Galaxy Railways system and the people that are sworn to protect it. No one knows these stories better than Layla Destiny Shura the leader of the system with the uncanny ability to see the fates of all those who travel on the Galaxy Railways.
Manabu and his brother Mamoru stow away on their fathers train.
Manabu tries to change his brother's fate when they come face to face in a Time-Knot.
Manabu is assigned to his father's old platoon.
The Sirius Platoon goes in search of the mythical Ghost Train.
Big One is stolen when Sirius Platoon is sent to Planet Leo Glando to investigate a crashed cargo train.
Manabu and the team must investigate what caused a passenger train to explode in deep space.
A criminal plans to destroy SDF Headquarters.
Manabu is assigned to assist SDF's head mechanic.
Bruce loses some of his memories to a magical creature.
The Sirius Platoon splits up to hunt for four escaped prisoners.
Bulge reflects upon his life as the crew of Big One embark on a rescue mission.
The Sirius Platoon investigates a mysterious oasis unaffected by the catastrophe befalling the rest of the planet.
The 777 Express comes under attack by aliens from another dimension.
Louis and Manabu are assigned guard duty for the President of the Clarious Stellar Cluster.
The SDF is tasked with stopping a meteor stream that is on a collision course with Central Station.
A casino train is hijaked by pirates and crashed on the Planet Guin.
David meets up with an old flame on a rescue mission.
Bruce and Manabu search for an intruder at SDF Headquarters.
The leave of the Sirius, Spica and Vega Platoons is cut short.
Manabu has been picked to join the Space Panzer Grenadiers.
Big One is sent on a rescue mission when an emergency signal is received from Kowloon City.
Captain Bulge order's Sirius Platoon to do everything they can to save Louis.
Sirius Platoon is disbanded as a result of Bulge's disobeying Ivanov's orders.
SPG Train 666 finds itself surrounded by enemy battleships.
Sirius Platoon executes a precision attack against the Alfort command ship.