Randl takes Fee under his wing and teaches her the family business. Fee and Foo enter an arm wrestling competition to prove they're the strongest in Littlebark.
Fee tries to learn what it's like to be a big sister, with the help of Piri Piri's mother, so she can watch over Harvey's baby sister Michele. When Foo saves his life, Rooter feels he must repay the debt.
Harvey thinks he is ready to rock out at his first concert. When the Lake Spirit gets a promotion, Harvey tries to convince him that Littlebark is too great of a town to leave.
A crime-wave has hit Littlebark! Fee is the culprit and now Harvey has to figure out if it's better to be true to the rules or to your friends. Harvey is worried living outside is unsafe and insists the twins move in with him.
Fee and Foo have a secret language just for the two of them. Foo feels betrayed when Fee shares it with Harvey. Dade loses it when he has doubts about whether or not he and Harvey are totally best friends.
Harvey believes that he'll become a boring adult when he turns ten, so he tries to cancel his birthday. The twins have never had a birthday, so they throw the biggest bash Littlebark has ever seen.
When Fee's longtime friend passes away, she learns how to say goodbye. Tara has lost her creative inspiration for hair styling, so Piri Piri and Harvey help her rediscover her passion.