You will Watch The Amazing World of Gumball Season 4 Episode 22 online for free episodes with HQ / high quality. Stream cartoons The Amazing World of Gumball Episode 138 When Mom and Dad struggle to keep hyperactive, toddler-aged Gumball from trashing the house and exhausting them, they decide to buy him a pet. It works, but there’s a problem: every goldfish they get him is short-lived, and inevitably ends up being flushed down the toilet. However, when Dad buys a talking goldfish from a mysterious shop, Gumball meets the best friend he’ll ever have. Having been accidentally flushed down the toilet, Darwin has to find his way back to his new family.