While Jack (Baldwin) plans the perfect 50th birthday party for himself he watches old home videos that inspire him to recreate one of the happiest moments he had as a young boy. Liz's (Fey) ex-boyfriend Dennis The Beeper King (Winters) decides to come clean to Liz about an addiction, stirring up drama between Liz and Jenna (Krakowski). Kenneth (Jack McBrayer) and Pete (Scott Adsit) team up to make Tracy's (Morgan) childhood dream come true. Also stars Judah Friedlander, Keith Powell and Katrina Bowden. To Watch The Preview Click Here .