Plot Summary:The Return: It's the first day back at school, but Gumball and Darwin are nowhere to be seen. Dad is in charge of getting the kids to their first day back at school on time, but he's overslept and now he can't find Gumball, Darwin or Anais anywhere. He sets about retracing his steps from the day before to work out where they might be. When he finally figures out where they are, it's a race against time to rescue them and prove to himself -- and Mom -- that he's not a bad father.
The series focuses on the misadventures of Gumball Watterson, a blue 12-year-old cat, along with his adopted brother, Darwin, a goldfish. Together, they cause mischief among their family, as well as with the wide array of students at Elmore Junior High, where they attend middle school.