Mighty Raju, the four year old kid with super powers travels to Rio, Brazil as his father Swamy has been given a special assignment by the government of India. Raju's mother, Sandhya is very happy to go there but Raju is very skeptical and feels that he will miss all his friends. Mighty Raju begins to like Rio and joins a school over there, but gets bullied by Daniel at the school and gets teased that he doesn't know about how to play football. Raju meets Maria and befriends her. He comes to know that she is the daughter of the Don of Rio- Don Pedro.
Raju begins to experience strange phenomenon and keeps losing his super powers for short durations of time. Meanwhile, his dad is trying to solve the puzzle of banks in Rio being robbed by the means of computers. Eventually, Mighty Raju learns to play football and his school team reaches the final of the inter-school tournament. In this film all his wits and powers are put to the test in a pulse-racing face-off against nasty soccer rivals, gun-toting Mafia dons and deadly Capoeira fighters, all set out to strike him down. Will Mighty Raju emerge victorious?