Mr. Belvedere plans a trip to England, where he is to receive an award from the Queen. Marsha, after first trying to keep it secret, tells the family that she thinks she may be pregnant and is awaiting word from her doctor.  Marsha doesn't want a child at this time in her law school career. Mr. Belvedere assigns the children to each write an essay about why they want to accompany him to England. The writer of the best essay will be chosen.

Marsha is relieved to hear that the pregnancy test is negative. Wesley overhears Marsha say that having Wesley delayed her career plans by ten years. Mr. Belvedere selects Kevin as the winning essayist because he felt it was the one that was most honest. 

Learning that Wesley overheard her comment, Marsha tries to apologize. Wesley doesn't believe she's sincere, and decides to run away.  Leaving early the next morning, Wesley goes to the bus depot, but finds he doesn't have enough money for a ticket. Wesley tries to get a job at the burger stand inside the depot, but the owner/waitress at first refuses, but relents when she finds how charming Wesley can be. She lets him work, and tells him that she believes any family would be crazy not to love him.

As Kevin and Mr. Belvedere prepare to leave, Heather rushes down from Wesley's room with Wesley's farewell letter in her hand.  After searching throughout the city, the family discovers Wesley at the bus depot.  Marsha fails once again to convince Wesley of her feelings, so Mr. Belvedere advises her to just tell the truth. Marsha finally tells Wesley that she never really wanted him, and that she was disappointed when she found out she was pregnant with him. But as she got to knew him, she grew to love him. Hurt but convinced, Wesley falls into her mother's arms.

Mr. Belvedere and Kevin miss their flight to England, but figure it is all for the best.
 

In this episode, we find out that Wesley was an unplanned pregnancy. In "Vows" (Season 2 Episode 6), we learned that Kevin was an unplanned pregnancy as well.

I thought that this was a very nice episode where we learned a lot about the background of the Owens Family. This is one of several episodes where Mr. Belvedere was sought out by the British Loyal Family. It appears that he is still very much wanted there, and it may be puzzling why Mr. Belvedere still chooses to work for the Owens family. It may only go to show how interesting Mr. Belvedere finds them to be.