狐狸在船上閱讀關於旅鼠的書籍時，隨口唸出了書上的一段話:【旅鼠不能跳下懸崖】，在旁邊的三隻旅鼠一聽到「跳」這個字後，紛紛從船上跳下去，狐狸見狀趕緊將牠們打撈上來。狐狸試圖要讓旅鼠們了解書籍的內容，但過程中不斷發生旅鼠們跳下去，狐狸再救它們上來的情節。

最後狐狸發現，原來旅鼠根本一個字也看不懂，這下傷腦筋了! 狐狸有辦法教會旅鼠們識字，並阻止牠們再跳下去嗎?而旅鼠們之後還會做出什麼荒唐的事情嗎?

"Lemmings don't jump off cliffs." It says so right here in Foxy’s book. There’s just one problem: the lemmings haven't read it. Welcome aboard the S.S. Cliff for a hilarious arctic adventure as first mate Foxy and Captain Polar Bear try to get these little guys to just READ THE BOOK!

‘An off-the-wall lesson about the value of facts… Children will laugh, be encouraged to read and be glad to Know Better.’ Sunday Times
‘A new favourite in our house… full of wit and exuberance, perfect for visually sophisticated modern children.’ Irish Independent