This article is a list of episodes from the television show Gatchaman II in order by production number.
A shining object collides with the luxury liner Queen Margareth. A child with special chromosomes is abducted from the sinking ship. Governor X has returned and with the help of his scientific power the child grows very quickly. It is given the name of Gel Sadra and enters on the task of being the new Galactor leader. Soon, numerous scientists and soldiers begin to disappear.
.. and the team doesn't know what to do. But thanks to a bomb somebody installed in the robot statue it is destroyed, and the team sees Getz killed by a feather shuriken. They pursue a fleeing shadow which looks like Joe. But was it really Joe? Could he be alive? The shadow leads them to a secret Galactor base which uses the ruins of the shrine as camouflage. Galactor continues in its preparations to launch the missile. The Science Ninja Team wants to stop them and they get into their individual mechas
The five of them start an all-out attack on the base. Because of the Ninja Team's attack, the Galactor operation ends in failure, but Ken's Eagle Sharp is wrapped in the explosion's flames and crashes in a forest. While losing consciousness, Ken faintly hears Joe's voice.
Somebody sneaks into Galactor's Headquarters and a plan to build a huge base in San Frangeles is relayed to the Science Ninja Team. Ken and the others are baffled at the voice of the communication. It sounds exactly like Joe's. Elsewhere, Galactor has a corps of knights, clad in black armour made of a special Sigma lightray-strengthened steel, sneak in places to steal nuclear energy. The plan is to have them destroy the city of San Frangeles while the base is still being completed.
In the country Amelia, between the cities New Jork and Scratton, there's the Dera Desert. Below that desert, Galactor is building a scecret base which is supposed to become a very important military strong point. But because they have rushed its completion, a huge explosions occurs and triggers a 9.2 magnitude earthquake in the area. The two cities get into a very critical situation. In order to find out what is happening, the team launches a sensor-equipped rocket drill into the Earth. The data is sent to the New God Phoenix and analyzed by Nambu. However, after the launch, the team is ambushed by Galactor and, yet again, the mysterious person saves them.
In the underdeveloped jungle country Fruginia, a village is destroyed by cavemen. Soon after, Neanderthal cavemen attack the country of Amehon, which is 200 kilometers away. They are immigrants from Fruginia who have been transformed by Galactor with the help of a special liquid. Among them is Toro, the father of young Shiro, whom Ken and the others met earlier by coincidence. Galactor plans to transform the all of humankind into cavemen, and, wants to pour chemicals into the water reservoirs to achieve this.