The spectre of death and destruction haunts the corridors of Moonbase Alpha.
In the battle against Alpha's greatest foe, many lives had been lost
so that one life could be saved.

Now, as the Alphans struggle to rebuild,
the Moon enters an area of space controlled by a mysterious alien race,
Computer is plagued by strange malfunctions,
and a ship of apparent refugees crashes near Alpha,
heralding strife for the base
and an emotional crisis for Maya.

For these refugees have a connection to Maya
that goes beyond anything she shares with the Alphans.

It is said that blood is thicker than water,
and the line between loyalty and betrayal...
is just a line.