The moon is being pulled off course and is on a collision with a black Dwarf! An unidentified ship is detected at the same time and two Eagles are dispatched to investigate.
The ship is revealed to be a SWIFT on a Star Mission from Earth that was lost in 1996. Upon allowing it to land, the inhabitants of Alpha encounter an eccentric and intelligent robot who is known as Brian the Brain. Brian's creator, Captain Michael and his crew, have all died in mysterious circumstances. Brian asks for the help of the crew of Alpha, however, it soon becomes apparent that Brian is anything but harmless.
Brian was in fact responsible for the deaths of Captain Michael and the crew of the SWIFT after he discovered his creator was working on a better brain. Kidnapping Koenig and Dr Russell aboard the SWIFT, Brian heads to Planet D to retrieve the fuel core of his mothership.
Brian threatens he will destroy the Alphans unless they supply him with enough nuclear fuel to sustain him forever!