Mohinder's trying to be helpful.  AKA: stupid.  He converses with Rebekah about missing daggers and promised to keep a look out for it.  He then shows off the garden in the green house.  People...are not...impressed.  What's with the radish hate folks?

After the party, in which he missed the zombie attack because he was with John Kenway getting it on drinking blood being awesome, Mohinder asks for Sylar's help with a friend of a friend.  Handy's friend Donna needs her brain looked at.

Now guess who's arrived?  Peter?  Yes.  Poor man.

And Peter Guillam inquires after their radish children.  They go to see the doctor when Mohinder's being stupid about the sunlight.  And he collapses and goes comatose.

But then he's back and Peter, Laura and Handy comfort him when John Kenway refuses to answer him at all.

He meets Lexi, a very nice...err...person.