Marissa loves
her big brother, Mario. He always comes up with fun ideas.
When playing in their nanaÂ’s backyard, they decide to make
some wormy, squirmy mud tacos. That gives Mario an idea—how
about some real tacos for lunch. Before long it is off to
the store with Nana, but first they must pick up their
cousins Rosie and Chico. When Chico starts acting like a
hotshot to prove that he is a big kid, can his cousins, with
the help of a few mud tacos, show him how to have some real fun?