Young Catherine Langford embarks on an unexpected adventure to unlock the mystery of what lies beyond the Stargate in order to save the Earth from darkness. ...

Dr. Brücke's intentions become clearer as he puts his theories about the Langford discovery to the test. As the ring's potential is revealed, Brücke decides to kidnap P ...

Cleverly eluding her captors, Catherine recruits the help of two soldiers for a rescue mission into the unknown. Meanwhile, Professor Langford and Brücke come face to fa ...

Catherine, Beal and Wasif quickly find themselves in over their heads after they arrive on another world, where they encounter a powerful alien warrior. ...

Hoping to lie low, the team follows their new guide to a native settlement while the Germans plot to forge an alliance with the planet's alien masters. ...

Professor Langford is forced to help Brücke and Aset negotiate an uneasy alliance that threatens to unleash an unspeakable horror. Meanwhile, Catherine and her team get ...

Aset finally reveals her end of the bargain, giving Brücke the chance to dream up a new and terrible plan for his return to Earth. Meanwhile, as Catherine bonds with the ...

Aset brings her guests to the outpost of Nosdevli, where a test of combat soon ensues to demonstrate a servant's worth to his master and putting Brücke in a difficult po ...

Beal leads a team to infiltrate Aset's temple, while Catherine and Kasuf go in search of a way to dial the Stargate back home. Meanwhile, Professor Langford decides to ta ...

As the powerful Ra approaches the temple, Catherine confronts Brücke, setting into motion a sequence of events that will change her destiny forever. ...