Tired of spring cleaning, Mole ventures above ground into the warm sunshine, and happens upon his friend Ratty. Together they picnic on the sparkling, burbling river, brave the sinister Wild Wood in wintertime to visit the bad-tempered Badger, and take to the open road in a caravan with dear, silly old Toad. But when Toad's attention turns to motor cars, his reckless behaviour goes from bad to worse. Badger, Rat and Mole must save their friend from ruin, and Toad Hall from the clutches of the rascally Stoats and Weasels.


小鼴鼠不想一直在地底打掃家裡，他冒著危險跑到地面，享受溫暖的陽光。他遇見好朋友水鼠，兩人就在閃亮如鑽的琤琤小河邊野餐。他們越過冬日黑森森的野樹林到了?的家，不過?常常板著一張臉。他們三個和愛惹禍的蛤蟆一起開著露營車上路。不久，蛤蟆把目光移向一台汽車，他魯莽衝動的行為讓事情變得更糟。?、水鼠和小鼴鼠把蛤蟆從一團廢鐵中救出，也將蛤蟆的住處從一群無賴的鼬鼠手上搶回來。