This was a so-so episode. Not bad, but not great either.
The episode was mostly about 6. Even so, we still didn't find out who or what "Agent Zero" was. The fact he lost his wife and son is really meaningless IMO. It has nothing to do with the story.
But where the episode does pay off, is with Sarah. Something fishy about her. Even 2 could sense it. And now the Android goes into sleepwalking mode? And only holds a gun to 3's head? Smells like Sarah to me. She can't have 3 because she's dead. So why not kill him and make him stay with her in the matrix.
NOTE:
Title spoken by Lara