The Mummysons are just your average, everyday family...Yes, they have a pet mummified fish and live in an Egyptian pyramid. Yes, Milo Mummyson is studying moths - the one thing deadly to mummies. Yes, Muriel Mummyson is making plans to build the ultimate pyramid play park. Yes, their dad is obsessed with creating a delicious Sphinx-Drinx, if only it didn't stink! And yes, something is destroying Freak Street park, while families are trying to picnic! But that's nothing out of the ordinary, right? Welcome to Freak Street, a street like any other ...until you take a closer look!