When Flo and Joseph Wanderday unwrap a Midnight Treats gobstopper, they're expecting to find a sugary sweet, not a mysterious message that kickstarts the adventure of a lifetime. 'HELP! Trapped in Midnight Forest. Come before it is too late.' With adventure in their hearts and sugar in their stomachs, the Wanderdays must find the Midnight Forest, journey through its sweet-themed tricks and trials, and face their greatest threat yet: sweet-factory workers who aren't in control of their own minds.