The Squirrels are playing hide and seek but they can't find Happy. Duggee can though - he follows Happy's footprints. The Squirrels follow lots of different footprints that take them to their friend but there is one set they just can't work out.

Duggee is cleaning the clubhouse so the Squirrels take refuge in the treehouse, but it's getting a little bit cramped these days. Norrie has an idea - maybe they need to add an extension, just like her dad does when she gets new siblings.