Commander Parkers Fight in an Alternate Universe

George Parker was sitting at home when he received a telegram from the Space administration. About to open the telegram there was a knock on his door. Opening the door, he saw two huge military police standing there. "Commander Parker?" asked one of the two. "We are here to take you to the administration." Would it be okay if I read the telegram I just received? asked Parker and followed the two policemen to the administrations building. Arriving there, he was taken up to General Stuart's office. "George Parker! So nice to see you again," said the general. "The administration voted unanimously for you to test our latest space ship, the Vega. Would you accept the commission? The crew and the ship are waiting for you George. Can I tell them that you accepted the honor?"
"Yes of course I accept," answered Parker. Then he was taken to the space ship Vega, standing on the platform with a full crew waiting for him. Parker was surprised when he saw his own crew standing next to the huge space ship. After all the greetings from Bill the engineer, Pete the navigator and Julie in charge of the armament, George Parker felt good to have his old crew back. The first part of the test flight went perfect. Now they had to connect the super drive, for the next part of the test flight. When arriving back to normal space speed, Pete, the navigator said that they had arrived at the wrong part of the universe, "I have no idea where we are, and our computer said the same thing." Now the real test started, would our crew of four be able to stand against a ruthless civilization that had put more than half of their own universe under its control?