After Jack took off as a backup dancer with iconic pop star Jennifer Lopez in last season's finale, he now reappears in the same role -- but as part of Jackson's performance tour. Elsewhere, Will and Grace try to get back to business as usual and mend Grace's broken heart. Will Arnet ("Arrested Development") and Bobby Cannavalle ("The Station Agent") guest-star.

When Will and Grace meet a stranger named Ned in the elevator, Grace accuses Will of being too nice to people he doesn't know. While Grace befriends Ned and invites him to dinner, Will makes some nasty remarks about him, but they soon discover that Ned's not the best company to keep. Meanwhile, Jack is having trouble at his new company, A GAY NETWORK, because he feels he can't relate to his co-workers after they mock him about his Cher doll. Karen and Rosario lend some much-needed support.