Twenty thousand years ago, as the Earth was being overrun with glaciers, Manny the woolly mammoth, Diego the saber-toothed tiger, Sid the sloth, and the human baby Scrat become a courageous quartet braving the frozen terrain and embarking on an incredible journey to return Scrat to human civilization.

Ira Glass sits behind some studio gear and speaks into a microphone, to tell the stories of criminals and the crime scenes they returned to, after having committed crimes at those places. -- Container.

Join host Ira Glass and his company, as they bring a different theme to life each week, in the format of the popular Chicago radio show by the same name