It was supposed to be just a normal Friday evening. But then everything changes: Tim has just settled in comfortably in front of the TV when suddenly a maize-yellow alien appears in the living room. What a shock! Fortunately, Dobo doesn't seem to be dangerous. Quickly, the alien and the ten-year-old boy become thick friends. However, some problems soon arise: There's the creepy Doctor Schnurz, who wants to conduct dangerous experiments with Dobo. Also, Jan's nasty gang has nothing good in mind. And how will Dobo get back home?.