Arthur Templar and the Serpo Gambit

General Zardaq learned that Arthur Templar's parents discovered how to control a runaway fusion reaction as part of their medical research.
Zardaq took over the planet Serpo. He is terrorising its people, and he has kidnapped Arthur's parents to extract their secrets.
Arthur Templar knows his parents could die if he tries to rescue them.
But if he does not rescue them, they will certainly die.
Arthur has no option but to attempt a rescue. But he knows he would be trading his own life for his parent's lives.
Arthur will have to face Zardaq alone.
Can he save his parents? Can he save Serpo? Can he save Earth? Can he save himself?