O Incrível Mundo de Gumball Temporada 3 Episódio 4

When Miss Simian sees Gumball and Darwin joyful on Monday, she knows that something is wrong with them. She performs tests on them, but the nurse disapproves what shes doing. But suddenly, Gumball and Darwin start to infect the school with the Joy Virus, and its up to Miss Simian and her tape player to cure the students.