In the story ""Bug Beard"", a woodcutter brings home a grubby, buggy old man he finds in the woods. His wife is not amused by the buggy old man, and so she sets about trying to clean him up. When the buggy man is finally all cleaned up, it turns out he just isn't his happy, dancing, singing old self. Can the Lions help?

Theo wants to teach the cubs a lesson, which he finds in a book of concatenations called Because a Little Bug Went KA-CHOO! What Theo doesn't know is that, by pulling that book from the middle of a pile, a pen dropped to the floor, setting off a concatenation in the library. It culminates with a hot-air balloon's bursting.

A famous marionette team is preparing to tell the story of Orlando Furioso and his battle to rescue Angelica from the curse of Fallerina. It's a story Leona knows by heart, and she has more than a loving desire to see this play.

Theo and Cleo leave Marmy in charge of the cubs, and she throws a big pig party in the library. Uh-oh...

The search for a lost book helps Theo and Cleo teach the cubs about responsibility.