Nate skips school to enjoy a day on the town with his friends, but his freedom is short-lived when he must team up with Godfrey to get Spitsy to the vet in time for an urgent procedure.

When an esteemed art critic comes to town, Nate hopes to dazzle him; however, his original characters begin to disappear one by one from his mind; Nate and friends explore his imagination to save them with some help from the past.