March of the Penguins

Jack convinces management to give "TGS"'s cancellation an eleventh hour reprieve to prove their worth with the 100th episode; Jenna considers becoming a mother. Guest stars include Michael Keaton. 30 Rock's 100th episode, which will air as a one-hour episode.

Arthur is leaving to visit Carrie's mother's grave, and Carrie decides to go with him since she has never been before. Arthur doesn't want her to come along because he has been keeping a secret from Carrie for all these years, and Carrie is sure to find out the truth if she joins him at the cemetery. Since Doug has the house to himself for the weekend, Doug gets together with his friend Ray Barone, and the two have an arguement over which one of them can attract more women. Turns out that the women ignore them both equally.

David and Bryan decide that they would like Goldie to be their surrogate once again after their son is born, meanwhile, Bryan's ex-boyfriend Monty returns to town and begins causing trouble.

Alex and Jane's sibling rivalry heats up; Dave makes a sex tape with a Lacrosse coach; Penny gets a new assistant at work.