My space defense

The planet Vega, due to the use of the high-energy but radioactive substance Vegatron, is becoming unstable. Therefore, in order to expand his empire and find a suitable planet for settlement, the ruthless King Vega unleashes a war against his nearest neighbors - the highly developed but peaceful planet Earth.
The best cosmonaut Egor must pilot Earth's most formidable weapon, a space cruiser, to defend his home planet from the alien invaders.