Three middle-aged wealthy couples take vacations together in Spring, Summer, Autumn and Winter. Along the way we are treated to mid-life, marital, parental and other crises.
| Actor | Role |
|---|---|
 Alan AldaJack Burroughs | Jack Burroughs |
 Carol BurnettKate Burroughs | Kate Burroughs |
 Len CariouNick Callan | Nick Callan |
 Sandy DennisAnne Callan | Anne Callan |
 Rita MorenoClaudia Zimmer | Claudia Zimmer |
 Jack WestonDanny Zimmer | Danny Zimmer |
 Bess ArmstrongGinny Newley (Callan) | Ginny Newley (Callan) |
| EElizabeth AldaBeth Burroughs | Beth Burroughs |
 Beatrice AldaLisa Callan | Lisa Callan |
| RRobert HittRoom Clerk | Room Clerk |
| KKristi McCarthyWaitress | Waitress |
| DDavid StackpoleDoctor | Doctor |