Overwhelmed by rats, a medieval town hires a magical piper who can rid the town of the pest in exchange for gold but the crooked mayor has no intention of honoring the deal.
In 1349, while the Black Plague threatens Germany, the town of Hamelin hires a wandering pied piper (Donovan) to lure rats away with his magic pipe, but then refuses to pay for his services, causing him to lure the town's children away.
Based on the legend of the Pied Piper, it stars Snoopy as the title character, who tries to rid the Peanuts' gang's hometown of mice by playing his concertina, in return for a year's supply of dog food.