September 10, 1977
Another sentinel with an evil alignment and who has the power of Astrea, Hercules and Mercury combined, comes to Earth for revenge.
September 17, 1977
The Sentinels have to deal with giant tough-to-beat robots who are initially after some gold as fuel.
September 24, 1977
A human from an advanced time period has returned to stop the construction of a moon base by destroying the supply rockets (unmann...Read more
October 1, 1977
A large section of the north pole has vanished, and the Sentinels are dispatched to investigate.
October 8, 1977
Anubis is revived and wants to exact revenge on human beings. The Sentinels have to stop this from happening.
October 15, 1977
The Sentinels travel to an alternate universe to investigate and defeat a device that alters reality.
October 22, 1977
Another Sentinel One-like computer, known as the Prime Sentinel, has been compromised by an evil unknown force, and the Sentinels ...Read more
October 29, 1977
An eco-terrorist threatens civilization and the Sentinels travel into the ocean to find and stop him.
November 5, 1977
Astrea is kidnapped with the intent to use her to power an underground civilization against her will. Hercules, Mercury, Sentinel ...Read more
November 12, 1977
A powerful human from another dimension is freed and sends Hercules and Mercury into his dimension which allows him to steal their...Read more
November 19, 1977
A young girl who has telepathy and can control wild animals, is attacking a laboratory in a forest. The Sentinels are dispatched to investigate.
November 26, 1977
When an alien plant spore is brought to Earth by a returing space probe, it endangers the planet when it begins to grow uncontroll...Read more
December 3, 1977
A large planetoid is on a direct collision course with earth. The Sentinels come to the conclusion that the planetoid must be dest...Read more