Snoopy sets up a therapy booth to rival Lucy’s, co-parents a lost egg with Woodstock, and teaches Rerun how to ride a tricycle.

Snoopy finds out Lucy’s definition of fun, coaches Charlie Brown in a potato sack race, and lets his imagination run wild thanks to Sally’s new bike.

Snoopy wants to have as much fun as he can before summer ends; Snoopy freshens up a game of fetch; and Lucy wakes up in a bad mood.