Rip teams up with the world-famous psychiatrist Dr. Sandra Null to hunt down Freud's Couch, which has taken on a monstrous life of its own. What WAS Dr. Freud up to in his laboratory all those years ago?

Saltine continues her Arky training under the tutelage of the powerful, mysterious, and adorable Yorbo. Meanwhile, Magnus tasks Rip and Swooper with finding a rare chess piece that is allowed to move anywhere on the board.