Battle of the Planets #4

Synopsis

When the island of Malu suddenly breaks off all outside contact G-Force is sent in to see what is happening. When they get there they find that the island (robot forest + human thugs) is forcing the inhabitants to mine diamonds for Zoltar. When G-Force releases the people a giant robot mole is sent after them. While G-Force uses the Phoenix to destroy the mole Zoltar escapes, leaving the diamonds behind.