The G-Force guinea pigs were told that they had been genetically engineered to be super special. And even when they learn that was a lie and that they're really quite ordinary, they still press on to do what's right. Darwin learns that a goofy, overweight pet shop guinea pig named Hurley is his brother. And though the two are initially at odds, they eventually come to care deeply about each other. Darwin says he's proud to call Hurley his brother and both speak positively of the strong bonds of family. The other G-Forcers realize the value of family, too. And they welcome Hurley in as a member.