The Amazing World of Gumball Season 3, Episode 20: " The Shell "

Season 3, Episode 20 of The Amazing World of Gumball , titled is widely regarded by fans and critics as one of the most pivotal and visually stunning episodes of the entire series. Originally aired on October 9, 2014, this episode fundamentally changed the status quo for Gumball Watterson and his longtime crush, Penny Fitzgerald. Plot Summary: A Breakthrough for Penny