Kevyn: Here's our plan, General. I'm going to take a tank loaded with everything we know to date, and go through this wormgate.

After a predetermined wait, I'll come back through, and I'll arrive here almost seven weeks ago.

That should give me sufficient time to stop the galactic core event, and to prevent your son from leaving on his ill-fated final mission.
General Tagon: I don't know time travel from tiddlywinks. What good is my advice going to be?
Kevyn: Well. . . if it works, you and I will never meet. This is your last chance to tell me how the company ought to be run.
General Tagon: Am I supposed to be flattered or freaked out right now?