I prefer to see Dolph in a show like SGU like in this show.
I have an idea of storyboard. It's like that :
he's a spy who take care to found data to fight the blueberry aliens. When he come back in his planet the aliens had launches an attack, the destiny was near to the planet and give some help, but destiny's crew found a boy who was injured, they bring back in the destiny to treat him. But the kid was Dolph's son, and when he saw that he thank that's he was taken in hostage by alliens's allieds and he infitratre the spaceship to recover his son. A battle begin in the ship between him and the the destiny's crew, before the two parts understand that there is a misunderstanding. After that Dolph decide to helps them to repair the ship's damage appears during the battle and to give them a a copy of that he found about their common enemies
Sorry if I'm doing mistake in my english