Logan Mayes, a middle-aged concert promoter who tries to dress and act just a little too "cool," arranges a European tour for the Partridge Family but the contract doesn't include Shirley. Logan thinks she won't appeal to a young European audience and doesn't want her in the group. Shirley knows the kids will never accept Logan's contract but she doesn't want them to miss out on a trip to Europe. So, she announces her retirement, telling the kids that she's tired of show business and wants to go back to being the kids that she's tired of show business and wants to go back to being just a mother. The next day, Keith and Laurie go to Logan's hotel room and learn the real reason behind Shirley's sudden resignation. Furious, they try to get their mother back in the group by deliberately messing up a nightclub performance in front of Logan. When that fails, they all decide to quit until Shirley tells them she'll join the group after the tour. (thetvdb.com)