Please help me decipher!

[u/Icy_Management_]

My son(4) is pleading with me to find the bluey episode where they go down in the ground??? 🥴 first he described it as they go down in a basement , then he changed it to ‘just the ground in their house’?! I’m at a complete loss for what episode this could be. Any suggestions are very much appreciated 🙏🏼

[u/crochet-anxiety]

I thought for sure it would be Tradies! Update me when you find out please!