Sarah is excited when she is invited to spend three days in New York to attend an art exhibition with her neighbor Senora Sanchez, but everything starts to go wrong when the Senora's tiny dog Bonita gets lost in the streets of Spanish Harlem.
Simple Spanish lessons are incorporated into this story about Benjamin gaining a new understanding of Christmas through his friendship with his new neighbor.
The neighborhood is planning a fiesta, but so many arguments erupt between relatives and friends that Benjamin decides that only he can save the fiesta.