Blippi's bow tie gets lost in the ball pit and the gang needs a way to find it! Blippi & Meekah go on a field trip to a construction site where they get to see how big excavators work. Meekah shows the team how to make a dirt cake, and animated Blippi wonders what it would be like to go underground in a tiny excavator.

Blippi, Meekah, Scratch and Patch love pretending to be trains, which makes them curious about how trains move. Meekah shows them how to turn cardboard boxes into train costumes. A conductor comes over to teach them about what he does and how trains work. Animated Blippi helps a steam train get to her destination on time. The whole gang gets to go on a field trip to ride a real train!

It's Recycling Day at the Treehouse! Scratch calls over a recycling truck driver to help and they learn how she collects recyclables. Meekah shows everybody how to re-use old juice boxes to make toy recycling trucks they can race with. Animated Blippi joins Julie the Juice Box as she gets recycled into something else useful.

Scratch shows off her skills on her tambourine, which makes Blippi, Meekah and Patch think about how fun it would be to make a band! Meekah shows them how to craft a guitar, a drum set and a microphone. A rock star stops by to show them how to use sheet music to play like a real band. Animated Blippi helps a music note find its place in a song. The whole gang stars in their very own music video!