狗狗Max，一直以為他是主人Katie的心肝寶貝和生活重心，但是當Katie帶回一隻身都是雜亂長毛的雜種狗Duke之後，他養尊處優的汪星人生活就徹底瓦解。Duke好不容易逃離流浪動物之家，很高興有一個家，以為能與Max和平共處，但是Max可不這麼想，一心想死守住他的地盤。當這對從一開始就不對盤的狗兄狗弟流落在紐約市的街頭時，他們必須拋開對彼此的成見，同心協力對抗一隻奸詐狡猾的雪球兔Snowball，並打敗Snowball招集的棄養寵物大軍「寵物革命咖」，然後在晚餐開飯之前回到主人身邊。他們最後也達成了，並且都各自找到自己的生存意義。

“What does Max do all day?”
Max loves his quiet life with Katie. But then new dog Duke comes to live with them and everything changes. When Katie goes out, the two dogs start an adventure across-and under-New York City. And all before Katie comes home!

Popcorn ELT Readers are a series of low-level graded readers for students in the early stages of learning English. Based on popular films, TV series and classic children’s literature, the range of titles is designed to motivate and engage younger learners. Each title includes a variety of fun activities, which cater for different learning styles, and is supported by online teacher’s notes.
Start Level：for students’ first stories in English 150 headwords.
Level 1 (Early Beginner)：for students beginning to read independently in English 200 headwords.
Level 2 (Mid-Beginner)：for students gaining confidence in reading in English 250 headwords.
Level 3 (High-Beginner)：for students reading confidently in English 300 headwords.