Lucy is distressed because she has no money for a summer vacation. She takes a temporary job as a process server at an attorney's office and must serve Mr. Mooney with a subpoena or lose her job. He's leaving on vacation and she tracks him down at a train station only to serve him the wrong papers.
She then tracks him onboard a ship which he is taking for a cruise. Determined, she goes to his stateroom onboard the ship, but stays a little too long. While the subpoena proves not to be bad news, Lucy ends up on the ship as a stowaway, which will not make another stop for the next twenty-eight days.
Special Notes: If you watch carefully, you can spot Keith Thibodeaux (Little Ricky on I Love Lucy) in the train station. Lucy walks out the front doors to see if Mooney's car is parked in the lot. As she's passing out the doors, a young boy (Thibodeaux) walks in with his mother. This is his first "Lucy" appearance since 1960; and it is also his last.
Bloopers: When Mr. Mooney is eating a hotdog at the train station he says that he is eating a hamburger.