S1, E4: Charlie and Oliver have built their very own clubhouse in the park…but they won’t let Bianca and Penelope in! Instead of getting mad, Bianca and Penelope decide to get…their OWN clubhouse. They can build one! Or can they? Penelope and Bianca will have to dig in their heels, and work together to create the clubhouse of their dreams- one step at a time!