Bob the Builder시즌 21 이미지 추가에피소드 번호18Aqua DucksOverviewWhile Bob and the team are building an aqueduct between Spring City and Fixham, some ducklings mistake Muck for their real mother. When their nest is endangered by the aqueduct, Muck tries to find a way to save the nest and ducklings and get the ducklings back to their real mother.Air dateJanuary 25, 2018Runtime (min)12