Jack McBrayer, Jane Krakowski, Tracy Morgan Photo

From: Photo Flash: 30 ROCK's 'Florida' Episode, Airing 1/17

On 30 ROCK's upcoming episode 'Florida,' Jack (Baldwin) encourages Liz (Fey) to be spontaneous and accompany him on a trip to Florida where they uncover a shocking secret about his mother. In Liz's absence, Tracy (Morgan) and Jenna (Krakowski) assume responsibility for "TGS" with disastrous results for Kenneth (Jack McBrayer.) Tim Meadows guest stars. 'Florida' airs Jan. 17 at 8 PM EST on NBC.