Does anybody no when there will be a 2nd episode?

Not yet, unfortunately. Amazon still hasn't officially decided which of its pilots they will put into full production, but according to the Hollywood Reporter, the shows with the highest ratings are "Those Who Can't", "Betas", "Onion News Empire", and "Alpha House". I would guess that those four shows are the most likely candidates to get a full season and I imagine they'll get moving on these pretty quickly once they announce their decision.

http://www.hollywoodreporter.com/live-feed/amazon-passes-zombieland-pilot-524640