Hugh runs away from home after finding out he was adopted. He's upset he may not be a giant like his adopted parents. Hugh's birth parents are found and he calms down.
When Alex skips class so the principal makes her go to the Happy Helpers Club. Alex explains to her that she prefers to be an unhappy trouble maker, but will happily do good quietly, so that no-one knows it's her.
So that his Career Day mentor doesn't lose his job, Justin changes the weather to agree with the forecast, but Mother Nature has other ideas.