Janet and Chrissy are busy preparing the surprise party at the Ropers' apartment. Susan, unaware of the birthday, charm's Jack into going out on a date with her instead.
The story centers on a surprise birthday party planned for Jack Tripper. Complications arise when (played by guest star Loni Anderson), an old flame who previously broke Jack's heart, arrives unexpectedly at the apartment. Threes Company - Season 2Eps25
The episode features iconic slapstick moments, including Jack's physical comedy and a notoriously rock-hard birthday cake. Key Details Guest Star: Loni Anderson as Susan Walters. Director: Bill Hobin. Writers: Kathy Donnell and Madeline DiMaggio Wagner. Janet and Chrissy are busy preparing the surprise