While Wendy takes the Machines to build a Crazy Golf course, Bob stays at the yard to assemble one of the novelty 'holes' - a miniature windmill. Wendy discovers the instructions in her toolbox and phones Bob, who says he doesn't need them. As Roley flattens the greens, Bird spots a small white object in the grass. Roley runs over the object which he thinks is an egg. Bird fetches Wendy, who reassures Roley that it is only a golf ball. She rings Bob who tells her that the windmill will be ready soon. Wendy heads to the yard to collect it, but when they get there Bob is nowhere to be seen. Wendy rings him on his mobile phone, and they are amazed to hear the windmill ringing. Bob has managed to build himself inside it! They return to the golf course for an inaugural game of Crazy Golf, which Wendy wins with a hole-in-one.