小老鼠维兹和白肚皮狐狸本是一对死敌，一场不幸的意外让他们在动物天堂相遇。没了自然本能的驱使，他们成为了最好的朋友，并相约回到尘世后还要和彼此相伴。只是没想到，重生之后，他俩互换了角色……

40-year-old Amelia who is hit by a bus on her birthday. When she wakes up, she suddenly finds the year is 2002 and Amelia is 18 again - allowing her to right all the mistakes she made the first time round.But as she finds herself ...