Meet O-Bug.
Not just any bug, an omniscient bug.

O-Bug is here to reveal what's behind Michael's blank stares,
to explain why Nikita does what she does,
to illustrate why we love Walter and Birkoff, to ask
should we love to hate Madeline or hate to love her,
and to drop hints about if Ops really is a good guy.
 
If you didn’t get enough intel the first time around,
if you’re mad, sad, conflicted, still in denial,
if you still just don’t get it, take heart.

O-Bug was there.