In the last episode of Moonlighting's fourth season, Maddie (Cybill Shepherd) returns to work after ending her brief marriage to Walter Bishop (Dennis Dugan). Her first post-nuptual case involves a public-relations man who wants to find his partner's lover, who has proven a major business distraction by penning gushy romantic letters. As Maddie and David (Bruce Willis) react differently to these letters, their assistant Bert Viola (Curtis Armstrong) broods over the fact that the Moonlighting fans have still not warmed up to him! The proceedings close as the entire cast frantically ad-libs a musical number when the writers go on strike.
by Hal Erickson synopsis