Jack bumps Jenna's scheduled appearance on 'Late Night with Conan O'Brien' by booking new star Tracy. Jenna, still irate over watching the show change to "TGS with Tracy Jordan," lashes out at Liz. To make matters worse, Tracy's gone off his medication and he's about to go on national television.

Liz has trouble adjusting to being a stay-at-home mother. Jack takes stock of his life, and Tracy struggles to get on without Kenneth.