Robin hosts a one-of-a-kind celebration. Harvey leaps into action to save Jinja's surprise from being spoiled.

An underground train sparks excitement across Sagoville. Rosie and friends help Harvey with a gift for Grandpa Jasper.

Harvey fills in for everyone's favorite prankster. After adopting a houseful of pet rocks, Harvey realizes they may be more than he can handle.

Hugbot puzzles everyone with a change in personality. Harvey and Juggo team up to move a giant hot-dog sign.

Jack sets his sights on winning a unique prize at the carnival. While Robin's loaf of bread naps, the friends learn new ways to play quietly.

Jinja helps Harvey stop his tail from wagging during hide-and-seek. Alan loses his mustache and leans on a cuddly caterpillar for answers.