For his birthday, Calvin's mother gives him two tickets to see Lomax the
Magnificent (magician and hypnotist extraordinaire!). Even though Mama
hints that his little sister, Trudy, would love to go, Calvin doesn't
hesitate to invite his friend Rodney instead.
The boys return home greatly impressed by the magician's performance.
When Calvin's mother goes out, she leaves him in charge of Trudy. It's a
job Calvin dislikes because his sister does not want to be left out of
anything. So Calvin and Rodney include her--by making her the first
subject for their own hypnotizing machine.
Much to the boys' surprise, the machine works. But unfortunately they
cannot undo what they have done. Trudy is stuck in her trance, convinced
she is a dog--panting, drooling, and barking at squirrels. The only
problem is, Calvin can't remember Lomax's magic word--Probuditi!--so
Trudy won't snap out of it!
The boys are worried and decide to take Trudy to the one man they know
can solve their problem--but will Lomax help them? Mama is on her way
home . . . Who will have the last laugh?