Burt Gummer and his son Travis Welker find themselves up to their ears in Graboids and Ass-Blasters when they head to Canada to investigate a series of deadly giant-worm attacks. Arriving at a remote research facility in the arctic tundra, Burt begins to suspect the Graboids are secretly being weaponized, but before he can prove his theory, he is sidelined by Graboid venom.

A preteen worm must find his way back home after he is accidentally brought up to the surface.

'Yucky!' says a young boy about the worms his grandmother digs up in her garden. But he soon changes his mind when he discovers how interesting worms really are, and how important they are in helping the soil, plants, and animals in the garden. Yucky Worms is a lighthearted study enhanced with appealing artwork and the witty comments of the many worms who live in Grandma's garden.