Have Edgar & Ellen met their mischievous match? The stars of Nicktoons animated series descend into the sewers to find out.Someone is tormenting the fine people of Nod's Limbs--and for once, it's not Edgar & Ellen! A new prankster is one step ahead of the twins, making mischief all over town. To discover the identity of this daring new foe, Edgar & Ellen must descend under town...and stop this rash of copycat capers once and for all!