What Should Callen Do About His Family on 'NCIS: Los Angeles'?

There was a time when Callen had no family and no idea what the G stands for on NCIS: Los Angeles. After the events of "Warrior of Peace," he may have lost his father for good and his relationship with his half-sister (and her son) is uncertain -- but should he fight for them?

Callen was unable to stop the trade that sent his father to Iran (and then Russia), despite being willing to go too far to help him, and by the time the family said goodbye at the border, it didn't look like Alex would be inviting Callen over for dinner anytime soon. "She just needs time," Nikita said, but is that it? Should Callen try to reunite his family on his own terms, or should he give both his father and his half-sister time, for the former to possibly escape on his own and for the latter to be ready to have him in her life (and her son's) again?