The babies play detective to try and solve the mystery behind some new things in the house.

The babies do a silly dance to help Tilly learn fun things, but she's got something special to teach them, too.

Silly is the name of the game as the babies get creative taking turns to lead outside playtime; Tilly takes some very big steps.

The babies don't speak Mandarin, so they're not sure what Tilly wants.

When Clickety Clock takes a tumble, Kip and Lulu help with repairs, but, without their trusty guide, the other babies get the schedule all mixed up.

Everybody wants to play with Tilly, but some of the babies still need to learn how to make sure their games are safe and gentle.