Jerusalem Jones (Sarah Jessica Parker) leaps into the story of Passover to solve the mystery of the missing afikoman and then B.B. King teaches his guitar to play in Hebrew as the cast takes a musical trip through Israel.
While making their way to Brosh's house for the Passover seder, Grover, Big Bird, and Avigail talk about the history and traditions of the holiday, and find opportunities to do good deeds.
In Israel, while Brosh is preparing to celebrate Rosh Hashanah, his favorite cap goes missing and he fears Grover or another of his friends has taken it.
Grover is celebrating Purim, which means baking hamantaschen, dressing up in Purim costumes, listening to the story of Queen Esther, and making noise with his grogger when Haman's name is said.