Bob builds a new bell tower for the school roof. Scratch becomes keen on the idea of doing his first "solo" job, so Bob asks him to go dig some holes in which Farmer Pickles will plant trees. Scratch takes the bell to ring it if he feels too alone. The moments of missing his friends continue, so he devises a new plan: he sculpts the pile of mud he's dug out into the shape of another machine! Unfortunately, his mud machine collapses on him and Scratch gets trapped! Desperate, he tries to persuade some squirrels to ring the bell for him. When the squirrels ring the bell, the team rescue Scratch, and he explains all. Scoop explains that it's actually really grown-up to face up to your feelings, as Scratch has done. Delighted by this praise, Scratch finishes the digging job, although he asks all his friends to help with him, so that he doesn't get lonely. Bob finishes the tower, the bell is hung, and Scratch is the first one to ring it. Air Date: May 3, 2010