Five youngsters enter the Hippo Challenge because of their skills, and this is the beginning of a friendship between them, unaware that the Hippo Challenge is designed by a big, powerful Mafia and unpredictable adventures ...
Overview：Five youngsters enter the Hippo Challenge because of their skills, and this is the beginning of a friendship between them, unaware that the Hippo Challenge is designed by a big, powerful Mafia and unpredictable adventures ...
