1. First Pet

Kiki's excited to get a pet, but furry little Fifi hides from her. When Kiki learns that it's best to be calm and gentle with pets, Fifi's ready to play!

2. First Big Mess

While making parade decorations, Luly and Teshi make a big mess. Teshi doesn't want to miss the fun, but should he leave Luly to clean it up alone?

3. First Big Roo Bed

Hazzy misses his baby bed until Luly shows him how to make his new bigger bed feel cozy. Now he's happy to have more room to cuddle with lots of stuffies!

4. First Haircut

Dewey's long hair gets in the way of playing, and he's afraid to get it trimmed. But asking questions makes him brave — and the haircut doesn't hurt!

5. First Library Book

When Kiki sees a pretty picture in a library book, she really wants it! Should she tear it out or take care of the book so others can enjoy it?

6. First Train Ride

Luly wants to join the gang for a trip to Poppy Park, but she's never been on a train before. With her friends by her side, it's fun to try new things!

7. First Time Sharing

While Teshi's playing with all the blocks, Hazzy asks if he can use some of them, too. Should Teshi share — or should Hazzy go play with something else?

8. First Time Feeling Mad

When Kiki drops the cookies she made, her day gets worse! Her pals show her how to make big, mad feelings go away — then share some yummy broken cookies!

10. First Time Feeling Jealous

On Switcheroo Day, Dewey wears Kiki's glasses and loves them so much that it makes him feel jealous. What can he do to feel better?

11. First Big Goodbye

Luly's sad that Kiki's going on a trip because she'll miss her! But Luly's happy when she learns how to keep in touch with Kiki until she comes home.

12. First Time Taking Things Slow

Kiki can't wait to build her first toy boat! Her pals follow the instructions, go slow and think it through... but Kiki's boat sinks. What went wrong?

13. First Time Losing a Game

After Dewey invents a new game, he loses and gets frustrated. Should he quit because he isn't winning or keep playing just for fun?

14. First Time Learning Personal Space

Mind the Roo bubble! Hazzy steps into Teshi's personal space with a hug, but Teshi doesn't like it. Should Hazzy have asked permission first?

15. First Time a Friend Looked Sad

Everyone has fun on Silly Hat Day... but Dewey's hat is broken, and he's sad. Should Luly ask him if he's OK or keep playing with her pals?

16. First Time I Kept Trying

Teshi has a tough time learning how to ride a pedal boat. If he gives up, he'll miss out on the fun — but if he keeps trying, he might get better at it!

17. The First Time a Pet Died

When a friend's pet dies, Kiki struggles with her feelings. But the Wonderoos soon realize that sometimes sadness comes with a mix of happy memories.

18. First New Baby

Hazzy is jealous when baby Hudzy gets all the attention. But he discovers taking care of little Roos is very important — especially when they're fussy!

19. First Big Trip (1) / First Big Trip (2)

The Wonderoos are excited — and a little nervous — about their big trip. But sharing new things they've learned helps them relax and have a good time!