The Wedding - S4.E23

Malcolm Wyatt hires Ally to take his case. He's suing a girl for not going to the prom with him after she said yes in fall. The opposing lawyer is Larry Paul, and Ally is nervous about meeting him in court. But he never shows up, and his partner Coretta tells Ally he left for Detroit. Richard hires Jane Wilco as the office's new secretary, but after she gets the cold shoulder from some people, Richard wonders what ever happened to the friendly workplace he once built. Ally talks to Billy's ghost and decides to go to Malcolm's prom as his date and convinces him to sing solo and never stop believing in love.