Estelle Castlewood (Celeste Holm) begins to discover what a charming gentleman Bertram McDonald (Sir John Mills) is when she meets him as an equal aboard ship in "A Good and Faithful Servant."

Isaac's budding relationship with a new crew member becomes complicated when Gopher tells him to fire her. Meanwhile, a congressman and his wife bring their daughter aboard the Pacific Princess after receiving letters threatening her young life.

A gambling cruise for charity proves a chancy thing for a teacher (McLean Stevenson), two honeymooners (Shea Farrell, Leah Ayres), and the drive chairwoman (Celeste Holm). Richard Jaeckel, Antony Ponzini, Jo Ann Pflug, Gavin MacLeod.

Captain Stubing hires a handsome new photographer who draws the attention of two sisters who were visiting Doc and Gopher. Then, a young man is shocked to meet his mother's (Lee Meriwether) new boyfriend, who is the same age as him.

An all-star cast visits beautiful and romantic locales on a cruise to Spain and Portugal. Guest stars include Melissa Sue Anderson, Olivia Brown, Mary Crosby, Lorenzo Lamas, William R. Moses, Cesar Romero, Sada Thompson, and Adrian Zmed.