Lucinda sees a dog tied to a tree. She notices that there is a piece of paper behind the leash and reads it finding out the dog's name is Chauncey. Not wanting to leave the dog, Lucinda decides to take Chauncey with her.
Lucinda has to sneak Chauncey into her apartment because dogs weren't allowed. She then decides to give Chauncey a bath. after the bath, Lucinda feeds him, combs him, and lets him lay on her bed.
Lucinda can't keep Chauncey so she decides to take him to the apartment basement. To keep Chauncey a secret, Lucinda has to take the stairs instead of the elevator. Lucinda puts Chauncey in a small closet with the apartment's control panel in it.
Lucinda's parents come home and begin a conversation with Lucinda. In between the conversation, the power goes out in the apartment. Lucinda remembers Chauncey and goes to the basement. Once she gets there she realizes Chauncey's not there.
Lucinda goes around looking for Chauncey. She goes to nice house and finds a girl from her school named Ashley. Ashley helps Lucinda look for Chauncey. Instead of finding the dog, Lucinda became friends with Ashley.
Lucinda goes back to her apartment only to find a firetruck outside. She soon finds Chauncey near the firetruck. Lucinda's mom was worried about Lucinda and wondered where she had run off to.