The second season begins with Helen complaining about never getting to take a vacation. To keep her quiet, Stanley prepares a secret disco birthday party with the aide of former tenents, Jack Tripper, Janet Wood, and Chrissy Snow. Janet and Chrissy arrive to teach Stanley how to disco. Janet quickly goes and takes a shower. Meanwhile, Chrissy is showing Stanley how to disco. Unknown to them is that Jeffrey is spying on them. When Janet comes out in a towl, his suspricions seem to be confirmed, and they are that Stanley is cheating on Helen. Also, Jack is put in charge of food and drinks. The party goes off with only one hitch-Helen hasn't arrived from her art class lessons! Stanley than calls the art class, only to find out she hasn't been there all night. As Stanley is trying to figure things out, Helen enters the room looking terrible. Helen explains how she stopped for gas and accidentally got locked in the rest-room when the station manager closed for the night. To add to her humil